Highlights of Industrial and Applied Physics (FIAP) Talks @ APS 2020 March Meeting
American Physics Society (APS) March meeting is one of the largest physics meetings in the world. In 2020, the meeting was canceled due to concerns over the rapid spread of COVID-19.
To help the community quickly catch up on the work to be presented in this meeting, Paper Digest Team processed all talk abstracts, and generated one highlight sentence (typically the main topic) for each. Readers are encouraged to read these machine generated highlights / summaries to quickly get the main idea of each talk. This article is on the talks related to Industrial and Applied Physics (FIAP).
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TABLE : Industrial and Applied Physics (FIAP)
| Title | Authors | Highlight | Session | |
|---|---|---|---|---|
| 1 | Discovery of Intrinsic Two-dimensional Ferromagnetism in CrTe2 Thin films | Zhang, Xiaoqian; Cook, Jacob; Lu, Qiangsheng; Bian, Guang | In this work, we report robust 2D ferromagnetism in chromium ditelluride (CrTe 2) nanofilms whose electronic structure and magnetic properties are clearly resolved by angle-resolved photoemission spectroscopy (ARPES), superconducting quantum interference device (SQUID) and X-ray magnetic circular dichroism (XMCD). | Session 1: 2D Magnetic Materials |
| 2 | Magnetic field- and temperature-dependent resonant Raman spectroscopy of bulk CrI3 | Li, Siwen; Ye, Zhipeng; Luo, Xiangpeng; Ye, Gaihua; Tian, Shangjie; Lei, Hechang; Sun, Kai; He, Rui; Zhao, Liuyan | In this talk, we will present our results on temperature- and magnetic field-dependent resonant Raman spectroscopy studies on bulk CrI 3. | Session 1: 2D Magnetic Materials |
| 3 | Electric-Field Control of 2D Magnetism in Bilayer VI3 | Nguyen, Thi Phuong Thao; Yamauchi, Kunihiko; Oguchi, Tamio | In this presentation, we will present our first-priciple study on the magnetic properties in bilayer VI 3 and the influence of applied electric-fields on the magnetism. | Session 1: 2D Magnetic Materials |
| 4 | Light-controlled magnetism in vanadium-doped tungsten disulfide monolayers | Ortiz Jimenez, Valery; Pham, Yen; Kalappattil, Vijaysankar; Zhang, Fu; Terrones, Mauricio; Phan, Manh-Huong | In this work, we show light-mediated magnetism in V-WS 2 at RT. | Session 1: 2D Magnetic Materials |
| 5 | Strain Tuning of Magnetic Order in Two-dimensional Magnets | Jiang, Shengwei; Xie, Hongchao; Weber, Daniel; Goldberger, Joshua; Shan, Jie; Mak, Kin Fai | Here we demonstrate that the magnetic order in 2D CrI 3 can also be effectively tuned by applying in-plane strain. | Session 1: 2D Magnetic Materials |
| 6 | Tuning Magnetism of Monolayer Tungsten Disulfide by Transition Metal Doping | Pham, Yen; Ortiz Jimenez, Valery; Kalappattil, Vijaysankar; Zhang, Fu; Terrones, Mauricio; Phan, Manh-Huong | Theoretical investigations of 2D transition metal dichalcogenides (TMDs) have predicted promising perspectives for inducing intrinsic FM in 2D TMD semiconductors by transition metal doping. | Session 1: 2D Magnetic Materials |
| 7 | Magnetic Correlations in the Quasi-2D Semiconducting Ferromagnet CrGeTe3 | Williams, Travis; Aczel, Adam; Ortiz, Brenden; Sarte, Paul; Wilson, Stephen | In this study, we use neutron scattering to measure the static and dynamic magnetic properties. | Session 1: 2D Magnetic Materials |
| 8 | First-principles theory of proximity spin-orbit torque on a two-dimensional magnet: Current-driven antiferromagnet-to-ferromagnet reversible transition in bilayer CrI3 | Dolui, Kapildeb; Petrovic, Marko; Zollner, Klaus; Plechac, Petr; Fabian, Jaroslav; Nikolic, Branislav | Using first-principles quantum transport approach, we predict that injecting unpolarized charge current parallel to the interface of bilayer-CrI 3/monolayer-TaSe 2 van der Waals heterostructure will induce spin-orbit torque (SOT) and thereby driven dynamics of magnetization on the first monolayer of CrI 3 in direct contact with TaSe 2. | Session 1: 2D Magnetic Materials |
| 9 | Large anomalous Nernst effect in a van der Waals ferromagnet Fe3GeTe2 | Xu, Jinsong; Phelan, William; Chien, Chia-Ling | Here, we report the observation of large anomalous Nernst effect in Fe 3GeTe 2. | Session 1: 2D Magnetic Materials |
| 10 | Unconventional magnetic behavior in two-dimensional layered CrTe2 films | CHI, HANG; Ou, Yunbo; Heiman, Don; Moodera, Jagadeesh | Here, we explore the behavior of a new van der Waals (vdW) TMD, CrTe 2 epitaxial films with apparent C 6 in-plane symmetry. | Session 1: 2D Magnetic Materials |
| 11 | Ultimate tunability of ferromagnetic anisotropy in chromium mixed halides | Tafti, Fazel; Tartaglia, Thomas; Bahrami, Faranak; Tang, Joseph | We present a phase diagram of all compositions of mixed halides and demonstrate how the critical temperature, Weiss constant, and magnetic anisotropy are continuously tuned across the series. | Session 1: 2D Magnetic Materials |
| 12 | Spin-dependent scattering in 2D van der Waals ferromagnet Fe0.29TaS2 and its heterostructure | Cai, Ranran; lv, peng; Xing, Wenyu; Yao, Yunyan; Ma, Yang; Zhou, Huibin; Li, Boning; Chen, Yangyang; Jia, Shuang; Zutic, Igor; Xie, Xincheng; Sun, Qing-Feng; Han, Wei | In this talk, we will present the spin-scattering mechanisms in quasi-2D van der Waals ferromagnet. | Session 1: 2D Magnetic Materials |
| 13 | Stacking Dependence of the Chern Number in a Ferromagnetic Topological Magnon Insulator Heterostructure | Hofer, Stephen; Datta, Trinanjan; Mazumdar, Dipanjan | In this work we focus on the topological magnetic features of these materials as they might be grown in the few-layer regime. | Session 1: 2D Magnetic Materials |
| 14 | Quantum critical point and ferromagnetic semiconducting behavior in p-type FeAs2 | Lei, Bing-Hua; Fu, Yuhao; Feng, Zhenzhen; Singh, David | We show that p-type FeAs 2 is an example. | Session 1: 2D Magnetic Materials |
| 15 | Temperature Dependence of the Anomalous Hall Effect from Electron Interactions | Li, Songci; Levchenko, Alex | We consider the impact of electron-electron interactions on the temperature dependence of the anomalous Hall effect in disordered conductors. | Session 1: 2D Magnetic Materials |
| 16 | Distinct magneto-Raman signatures of spin-flip phase transitions in CrI3 | McCreary, Amber; Mai, Thuc; Utermohlen, Franz; Simpson, Jeffrey; Garrity, Kevin; Feng, Xiaozhou; Shcherbakov, Dmitry; Zhu, Yanglin; Hu, Jin; Weber, Daniel; Watanabe, Kenji; Taniguchi, Takashi; Goldberger, Joshua; Mao, Zhiqiang; Lau, Chun Ning; Lu, Yuanming; Trivedi, Nandini; Valdes Aguilar, Rolando; Hight Walker, Angela | We observe a striking evolution of the Raman spectra with increasing magnetic field in which clear, sudden changes in intensities of the modes are attributed to the interlayer ordering changing from antiferromagnetic to ferromagnetic at a critical magnetic field. | Session 1: 2D Magnetic Materials |
| 17 | Probing Tunneling Magnetoresistances in Chromium Trihalide Junctions via First Principles Calculations | Heath, Jonathan; Kuroda, Marcelo | Here we characterize physical properties of multilayer chromium trihalide/graphene junctions using density functional theory (DFT) and Landauer’s formalism for ballistic transport. | Session 1: 2D Magnetic Materials |
| 18 | Optically probing low energy magnetic excitations in bilayer CrI3 | Xie, Hongchao; Ye, Zhipeng; Tian, Shangjie; Lei, Hechang; He, Rui; Zhao, Liuyan | Study of spin waves, collective magnetic excitations, in two-dimensional (2D) magnets emerges as one key yet new topic in the research of 2D magnetism. | Session 1: 2D Magnetic Materials |
| 19 | Current Control of Magnetism in Two-Dimensional Fe3GeTe2 | Brataas, Arne | We investigate how a current can control the ferromagnetic properties of such materials. | Session 1: 2D Magnetic Materials |
| 20 | Enhanced magnetoresistance in mixed van der Waals magnetic tunnel junctions | Klein, Dahlia; MacNeill, David; Tschudin, Märta; Watanabe, Kenji; Taniguchi, Takashi; Jarillo-Herrero, Pablo | Studies have demonstrated large tunneling magnetoresistances in van der Waals magnetic tunnel junctions fabricated from the insulating layered chromium trihalides (CrX 3) due to the spin filter effect. | Session 1: 2D Magnetic Materials |
| 21 | Hall micromagnetometry of two-dimensional ferromagnets | Kim, Minsoo; Kumaravadivel, Piranavan; Birkbeck, John; Kuang, Wenjun; Xu, Shuigang; Hopkinson, David; Knolle, Johannes; McClarty, Paul; Berdyugin, Alexey; Ben Shalom, Moshe; Gorbatchev, Roman; Haigh, Sarah; Liu, Song; Edgar, James; Novoselov, Konstantin; Grigorieva, Irina; Geim, Andre | Here we show that ballistic Hall micromagnetometry provides a reliable and convenient way to measure magnetization of individual two-dimensional ferromagnets. | Session 1: 2D Magnetic Materials |
| 22 | The quantum non-Heisenberg nature of two-dimensional CrI3 magnets | Santos, Elton; Wahab, Dina; Augustin, Mathias; Mañas-Valero, Samuel; Kuang, Wenjun; Jenkins, Sarah; Coronado, Eugenio; Grigorieva, Irina; Vera Marun, Ivan; Navarro-Moratalla, Efren; Evans, Richard; Novoselov, Kostya | We find that biquadratic exchange interactions are essential to quantitatively describe the magnetism of CrI 3 but requiring quantum scaling corrections to reproduce its thermal properties. | Session 1: 2D Magnetic Materials |
| 23 | Substrate-assisted asymmetric electronic gap in artificial magnetic honeycomb lattice | Guo, Jiasen; Chen, Yiyao; Yumnam, George; Cunningham, Quinn; Singh, Deepak | Substrate-assisted asymmetric electronic gap in artificial magnetic honeycomb lattice | Session 1: 2D Magnetic Materials |
| 24 | Magneto-Raman study of the Neel-type Antiferromagnet MnPSe3 | Mai, Thuc; Argo, Joshua; McCreary, Amber; Valdes Aguilar, Rolando; Doan-Nguyen, Vicky; Hight Walker, Angela | We perform a systematic magneto-Raman study of MnPSe 3. | Session 1: 2D Magnetic Materials |
| 25 | Magnetic structure determination of transition metal dichalcogenide Fe1/3NbS2 | Wu, Shan; Xu, Zhijun; Maniv, Eran; Acharya, Arani; Doyle, Spencer; John, Caolan; Analytis, James; Birgeneau, Robert | From neutron diffraction experiment,we determined a stripe-type order that develops into three magnetic domains, which is strongly coupled to three nematic domains. | Session 1: 2D Magnetic Materials |
| 26 | Magnetic interactions and excitations in magnetic 2D van der Waals materials | Ke, Liqin | Using linear-response ab initio methods, we investigate the magnetic interactions and spin excitations in various m2DvdW systems. | Session 1: 2D Magnetic Materials |
| 27 | Is 2H-MoTe2 an intrinsically magnetic semiconductor? | Krieger, Jonas; Guguchia, Zurab; Shiroka, Toni; Prokscha, Thomas; Suter, Andreas; Strokov, Vladimir; Salman, Zaher | Here we present results of complementary spectroscopic techniques to elucidate the nature and origin of the reported magnetic order. | Session 1: 2D Magnetic Materials |
| 28 | Patterning-induced ferromagnetism of Fe3GeTe2 van der Waals materials beyond room temperature | Yang, Mengmeng; Li, Qian; Gong, Cheng; Chopdekar, Rajesh; N’Diaye, Alpha; Turner, John; Chen, Gong; Scholl, Andreas; Shafer, Padraic; Arenholz, Elke; Schmid, Andreas; Wang, Sheng; Liu, Kai; Gao, Nan; Admasu, Alemayehu; Cheong, Sang-Wook; Hwang, Chanyong; Li, Jia; Wang, Feng; Zhang, Xiang; Qiu, Zi Q. | Here we report a real space imaging study of itinerant ferromagnet Fe 3GeTe 2 and the enhancement of its Curie temperature well above ambient temperature. | Session 1: 2D Magnetic Materials |
| 29 | Time-resolved ultrafast oscillation of octupole polarization in a chiral antiferromagnet Mn3Sn | Miwa, Shinji | In this talk, we report our time-resolved observation of spin precession in a metallic chiral antiferromagnet Mn 3Sn [4]. | Session 2: Antiferromagnetic Spintronics |
| 30 | Evidence of Electrical Switching of the Antiferromagnetic Néel Vector | Chiang, Chih-Chieh; Huang, Ssu Yen; Qu, Danru; Wu, Po-Hsun; Chien, Chia-Ling | We show that under a large writing current density beyond the Ohmic regime, the multi-terminal devices can generate unintended anisotropic thermal gradient and voltages. | Session 2: Antiferromagnetic Spintronics |
| 31 | Spin-torque control of the noncollinear antiferromagnetic order in antiperovskites | Gurung, Gautam; Shao, Ding-Fu; Tsymbal, Evgeny | Here, we predict that the spin torque can be efficiently used to control the noncollinear AFM order in antiperovskite materials. | Session 2: Antiferromagnetic Spintronics |
| 32 | Nonlinear anomalous Hall effect for Néel vector detection | Shao, Ding-Fu; Zhang, Shuhui; Gurung, Gautam; Yang, Wen; Tsymbal, Evgeny | Here, we predict that the nonlinear anomalous Hall effect (AHE) can be used to detect the Néel vector in most compensated antiferromagnets supporting the antidamping SOT. | Session 2: Antiferromagnetic Spintronics |
| 33 | Rotating Néel Order to Probe Crystalline and Non-Crystalline AMR in FeRh | Sklenar, Joseph; Shim, Soho; Saglam, HIlal; Kang, Kisung; Oh, Junseok; Hamilton, Greg; Zhang, Wei; Gilbert, Matthew; Schleife, Andre; Hoffmann, Axel; Mason, Nadya | We confirm that AMR arises from rotating Neel order two ways: 1) We developed a procedure combining rotating and linearly swept fields to demonstrate an angular hysteresis effect; 2) We use density functional theory for a first-principles description of the evolution of the AMR signal, representing the external magnetic field by canted spins and the sweeping field by Néel vector rotation from the [100] direction. | Session 2: Antiferromagnetic Spintronics |
| 34 | Nonvolatile control of long-distance spin transport in an easy-plane antiferromagnetic insulator | Han, Jiahao; Zhang, Pengxiang; Fan, Yabin; Safi, Taqiyyah; Xiang, Junxiang; Cheng, Ran; Liu, Luqiao | Here we show that efficient spin transport over micrometer distance indeed happens in an easy-plane antiferromagnetic insulator, α-Fe 2O 3 thin film. | Session 2: Antiferromagnetic Spintronics |
| 35 | Intrinsic spin Nernst effect of magnons in a noncollinear antiferromagnet | Li, Bo; Sandhoefner, Shane; Kovalev, Alexey | We formulate a general linear response theory for magnons in noncollinear antiferromagnets subject to a temperature gradient and analyze the effect of symmetries on the response tensor. | Session 2: Antiferromagnetic Spintronics |
| 36 | Electric-field control of magnon spin current in an antiferromagnetic insulator | Liu, Changjiang; Luo, Yongming; Hong, Deshun; Zhang, Shulei; pearson, john; Fisher, Brandon; Hoffmann, Axel; Bhattacharya, Anand | As a result, we show that the spin-flop transition in this material can be switched on or off by varying only an electrical voltage. | Session 2: Antiferromagnetic Spintronics |
| 37 | Phenomenological theory of coherent and incoherent spin currents in antiferromagnetic spin pumping | Cheng, Ran | We formulate a phenomenological theory to capture the coupled dynamics of coherent and incoherent magnons in collinear antiferromagnets driven by sub-THz sources, which can fit very well with the experimental observation and explain why the competition between coherent and incoherent magnons leads to a sign change in the spin current at a turning temperature. | Session 2: Antiferromagnetic Spintronics |
| 38 | Coherent ac spin current transmission across an antiferromagnetic CoO insulator | Li, Qian; Yang, Mengmeng; Klewe, Christoph; Shafer, Padraic; N’Diaye, Alpha; Hou, Dazhi; Wang, Tianye; Gao, Nan; Saitoh, Eiji; Hwang, Chanyong; Hicken, Robert; Li, Jia; Arenholz, Elke; Qiu, Zi Q. | Utilizing element- and time-resolved x-ray pump-probe measurements on Py/Ag/CoO/Ag/Fe 75Co 25/MgO(001) heterostructures, here we demonstrate that a coherent GHz ac spin current pumped by the Py ferromagnetic resonance can transmit coherently across an antiferromagnetic CoO insulating layer to drive a coherent spin precession of the Fe 75Co 25 layer. | Session 2: Antiferromagnetic Spintronics |
| 39 | Spin Current from sub-Terahertz-generated Antiferromagnetic Magnons | Li, Junxue; Wilson, Blake; Cheng, Ran; Lohmann, Mark; Kavand, Marzieh; Yuan, Wei; Aldosary, Mohammed; Agladze, Nikolay; Wei, Peng; Sherwin, Mark; Shi, Jing | Here we report sub-terahertz spin pumping in heterostructures of a uniaxial antiferromagnetic Cr 2O 3 crystal and a heavy metal of Pt or Ta (Beta-phase). | Session 2: Antiferromagnetic Spintronics |
| 40 | Quantitative Study on Current-Induced Effects in an Antiferromagnet Insulator/Pt Bilayer Film | Zhang, Pengxiang; Liu, Luqiao | Here by utilizing an antiferromagnetic insulator with Dzyaloshinskii-Moriya interaction, α-Fe2O3, we show that the Néel vector can be controlled with a moderate external field, which is further utilized to calibrate the current-induced magnetic dynamics. | Session 2: Antiferromagnetic Spintronics |
| 41 | Resonant ultrasound studies of Fex=0.33NbS2 | Lewin, Sylvia; Nagarajan, Vikram; Perko-Engel, Gabriel; Maniv, Eran; Haley, Shannon; Analytis, James | Resonant ultrasound studies of Fex=0.33NbS2 | Session 2: Antiferromagnetic Spintronics |
| 42 | Effects of residual stress on MEMS direction-finding sound sensors | Perera, Meeghage; Rabelo, Renato; Alves, Fabio; Karunasiri, Gamani | The sensors employed in this work were fabricated on a silicon-on-insulator (SOI) substrate using MEMSCAP’s SOIMUMPS process which found to generate a residual-stress induced curvature on the wings. | Session 3: Applications of Semiconductors, Dielectrics, and Complex Oxides |
| 43 | Alloying hexagonal/orthorhombic Ga2O3 with Al2O3 | Seacat, Sierra; Lyons, John; Peelaers, Hartwin | Here we use density functional theory with hybrid functionals to elucidate how alloying with Al 2O 3 can be used to modify the structural and electronic properties of Ga 2O 3. | Session 3: Applications of Semiconductors, Dielectrics, and Complex Oxides |
| 44 | Nanomaterials-based Color-Detection via Machine-Learning Algorithms | Hejazi, Davoud; Liu, Shuangjun; Farnoosh, Amirreza; Ostadabbas, Sarah; Kar, Swastik | By applying machine learning techniques we have used the variations in spectral transmittance of nanomaterials as the alternative method for optical spectrum estimation. | Session 3: Applications of Semiconductors, Dielectrics, and Complex Oxides |
| 45 | SiGe Devices with High-k Dielectric Gates | DeMell, Jennifer; Stephen, Gregory; Gaspe, Chomani; Richardson, Christopher; Friedman, Adam | We present magnetotransport results for both the charge- and spin-based devices from 3-300 K at fields up to 2.5 T. | Session 3: Applications of Semiconductors, Dielectrics, and Complex Oxides |
| 46 | A bifurcation study of the dynamics of TaO memristors | Pershin, Yuriy; Slipko, Valeriy | Here, we analyze the pulse-driven dynamics of tantalum oxide memristors using a sophisticated device model developed in Ref. | Session 3: Applications of Semiconductors, Dielectrics, and Complex Oxides |
| 47 | Parametric Coupling in Aluminum Nitride Lamb Wave Devices Through a Nonlinear Elastic Modulus | Schneider, Joseph; Lu, Ting; Tiwari, Sidhant; Zou, Xiating; Mal, Ajit; Candler, Robert; Wang, Yuanxun; Carman, Greg | In this research, Aluminum Nitride (AlN) Lamb wave devices are investigated as an option for parametric coupling in acoustic waves, significantly reducing the size of devices in the desired frequency range. | Session 3: Applications of Semiconductors, Dielectrics, and Complex Oxides |
| 48 | Evidence for ferroelectric polarons in lead halide perovskites | Zhu, Xiaoyang | We show that the shape of a ferroelectric polaron resemble that of a Belgian waffle. | Session 3: Applications of Semiconductors, Dielectrics, and Complex Oxides |
| 49 | Surface structure and electronics of all-inorganic halide perovskites CsPbI3: A first-principles study of surface reconstructions | Seidu, Azimatu; Rinke, Patrick; Li, Jingrui | In this work, we use density-functional theory and atomistic thermodynamics to calculate the surface phase diagrams of the (001) surfaces of CsPbI 3 in the Pm-3m (α), P4/mbm and Pnma (γ) phases. | Session 3: Applications of Semiconductors, Dielectrics, and Complex Oxides |
| 50 | Local Magnetic Field Effect on InSb Nanowire Devices | Jiang, Yifan; Sande, Vince; Jong, Eline; Gazibegovic, Sasa; Badawy, Ghada; Op het Veld, Roy; Bakkers, Erik; Frolov, Sergey | Local Magnetic Field Effect on InSb Nanowire Devices | Session 3: Applications of Semiconductors, Dielectrics, and Complex Oxides |
| 51 | Comparison of spin photocurrent in devices based on in-plane or out-of-plane magnetized CoFeB spin detectors | Renucci, Pierre; Xue, Xiaodi; Zhu, Laipan; Huang, Wei; Liu, Yu; Zhang, Yang; Zeng, Xiaolin; Wu, Jing; Xu, Bo; Wang, Zhanguo; Chen, Yonghai; zhang, Weifeng; Marie, Xavier; LU, Yuan | Our study reveals the large spin relaxation anisotropy in III-V zinc-blende quantum wells in the presence of a vertical electric field. | Session 3: Applications of Semiconductors, Dielectrics, and Complex Oxides |
| 52 | Characterization of quantum tunneling devices by controlled current pulses | Patino, Edgar; Rios E, Leonardo | Regarding the minimization of dissipation, in the present work, we show the development of a characterization technique based on controlled current pulses, which significantly reduces heat dissipation and thus allows a significant increase in the Tunnel Junctions lifetime. | Session 3: Applications of Semiconductors, Dielectrics, and Complex Oxides |
| 53 | Topology-optimized Metal-Semiconductor Hybrid Structures to obtain Optimal Extraordinary Magentoresistance | Das, Debanik; Bharadwaj, Sathwik; Ram-Mohan, L | Here, we employ a topology optimization scheme based on the level set function. | Session 3: Applications of Semiconductors, Dielectrics, and Complex Oxides |
| 54 | In4Se3 (001) surface termination and Schottky-barrier formation | Dhingra, Archit; Galiy, Pavlo; Wang, Lu; Nenchuk, Taras; Yost, Andrew; Mei, Wai-Ning; Dowben, Peter | In4Se3 (001) surface termination and Schottky-barrier formation | Session 3: Applications of Semiconductors, Dielectrics, and Complex Oxides |
| 55 | Characteristics of β-Ga2O3 2D-nanoleaf and 1D-nanowire structures and their resistive switching performance | Sivakumar, Chandrasekar; Tsai, Gang-Han; Ho, Mon-shu | In this study, we have taken advantage of controlled electron flow in 2D and 1D materials to study the resistive switching. | Session 3: Applications of Semiconductors, Dielectrics, and Complex Oxides |
| 56 | Electric Field-Induced Metal-to-Insulator Phase Transition in Few-Layered MoSe2 | Pradhan, Nihar; Garcia, Carlos; Chakrabarti, Bhaswar; Nash, Jawnaye; Miller, Christina S; Raghavan, Dharmaraj; Karim, Alamgir; Stan, Liliana; Divan, Ralu; Rosenmann, Daniel; Sumant, Anirudha; McGill, Stephen | We will present a potential MIT in few-layered MoSe 2 FETs based on four-terminal conductivity measurements. | Session 4: Atomic Structure, Lattice Properties, and Phase Transitions |
| 57 | Partial Switching in Phase Change Material Sb2Te3 Nanowires to an Intermediate Resistance State by Microwave injection | Tse, Pok Lam | Partial Switching in Phase Change Material Sb2Te3 Nanowires to an Intermediate Resistance State by Microwave injection | Session 4: Atomic Structure, Lattice Properties, and Phase Transitions |
| 58 | Understanding the Phase Behaviour of Pyrochlore Bi2Sn2O7 | Rahim, Warda; Skelton, Jonathan; Walsh, Aron; Scanlon, David | 3 We perform DFT lattice dynamics calculations using Phonopy 4 starting from γ, and map out the potential energy surfaces 5 spanned by imaginary mode eigenvectors, with the aim of elucidating the lowest energy structure. | Session 4: Atomic Structure, Lattice Properties, and Phase Transitions |
| 59 | Electron Transfer in Contact Electrification | Kulbago, Benjamin; Chen, James; Liu, Jun; Thundat, Thomas | Electron Transfer in Contact Electrification | Session 4: Atomic Structure, Lattice Properties, and Phase Transitions |
| 60 | Density Functional Investigation of Phase Transition in Silicon Nanomembranes | Ambriz Ponce, Joel; Macintosh, Evan; Parker, William | Using an atomistic slab model, we simulate the electrons with density functional theory in order to investigate the pressure phase transition of silicon in the membrane from semiconducting diamond phase to metallic beta-tin phase. | Session 4: Atomic Structure, Lattice Properties, and Phase Transitions |
| 61 | Ultra-High Mechanical Flexibility of 2D Silicon Telluride | Bhattarai, Romakanta; Shen, Xiao | Ultra-High Mechanical Flexibility of 2D Silicon Telluride | Session 4: Atomic Structure, Lattice Properties, and Phase Transitions |
| 62 | Entanglement entropy of skeletal regions | Vigeant, Alex | Here, we study this question using a 2D harmonic lattice model that leads to a relativistic massless scalar (conformal field theory) at low energy. | Session 4: Atomic Structure, Lattice Properties, and Phase Transitions |
| 63 | Origin of unexpectedly low thermal conductivity in AMg2X2 (A = Mg, Ca, Yb, X = Sb, Bi ) | Ding, Jingxuan; Lanigan-Atkins, Tyson; Cueva, Mario; Zevalkink, Alexandra; Banerjee, Arnab; Delaire, Olivier | We present our analysis of the thermal conductivity based on INS and simulations. | Session 4: Atomic Structure, Lattice Properties, and Phase Transitions |
| 64 | Anharmonic Effects on Phonon Eigenvectors and S(Q,E) in Quantum Paraelectric SrTiO3 | He, Xing; Bansal, Dipanshu; Winn, Barry; Chi, Songxue; Boatner, Lynn; Delaire, Olivier | We identify that changing Ti and O eigenvectors, originating from FC changes in the Ti-O bonds, are responsible for these striking observations. | Session 4: Atomic Structure, Lattice Properties, and Phase Transitions |
| 65 | Covalency-driven Structural Evolution in the Polar Pyrochlore Series Cd2Nb2O7–xSx | Hickox-Young, Daniel; Laurita, Geneva; Husremovic, Samra; Rondinelli, James | Here we examine the origin and nature of the distortion mechanisms in the oxysulfide series Cd 2Nb 2O 7-xS x. Using density functional theory, group theoretical methods, and diffraction techniques, we characterize changes in the phase transition under sulfur substitution. | Session 4: Atomic Structure, Lattice Properties, and Phase Transitions |
| 66 | Relationship between multiple degrees of freedom and oxygen interstitial ordering in rare earth ferrites | Zhang, Yang; Wang, Wenbing; Xing, Wandong; Yu, Rong; Zhu, Jing | Here, we report how such information can, for the first time, be obtained from the rare earth ferrite LuFe 2O 4+x by high-resolution electron microscopy, atomic-resolution spectroscopy and DFT calculations. | Session 4: Atomic Structure, Lattice Properties, and Phase Transitions |
| 67 | First Principle Study of Phase Change Properties of Ag- and In-doped Sb-Te compound as Phase Change Material | Park, Hanjin; Kwon, Young-Kyun; Kim, Dasol; Cho, Mann-Ho | To reveal phase change properties and local atomic behavior in AIST, we performed molecular dynamics (MD) simulations using ab initio density functional theory. | Session 4: Atomic Structure, Lattice Properties, and Phase Transitions |
| 68 | Structural order-by-disorder in framework materials | Guzman-Verri, Gian; Littlewood, Peter | In this talk, we propose an ObD mechanism is at play in the observed structural transitions in a class of framework materials (MF 3 metal triflourides), which display soft manifold lattice dynamics with an inability to go through a symmetry breaking distortion, providing the required ground state degeneracy analogous to that of frustrated magnetism. | Session 4: Atomic Structure, Lattice Properties, and Phase Transitions |
| 69 | Electrical properties of ferroelectric 1,4-diaminobutane zinc formate crystals under high hydrostatic pressure. | Szeremeta, Anna; Nowok, Andrzej; Sieradzki, Adam; Maczka, Miroslaw; Pawlus, Sebastian | Electrical properties of ferroelectric 1,4-diaminobutane zinc formate crystals under high hydrostatic pressure. | Session 4: Atomic Structure, Lattice Properties, and Phase Transitions |
| 70 | Cubic and Tetragonal Perovskites from the Random Phase Approximation | Jia, Fanhao; Kresse, Georg; Franchini, Cesare; Liu, Peitao; Wang, Jian; Stroppa, Alessandro; Ren, Wei | Using the random phase approximation (RPA) to describe the correlation energy combined with the exact exchange energy, we have investigated twenty cubic ABO 3-type perovskites and three prototypical ferroelectric (tetragonal) perovskites. | Session 4: Atomic Structure, Lattice Properties, and Phase Transitions |
| 71 | Defect Spectroscopy of Ga2O3 | Ringel, Steven; Arehart, Aaron; Ghadi, Hemant; McGlone, Joseph; Farzana, Esmat; Speck, James; Mauze, Akhil; Rajan, Siddharth; Kalarickal, Nidhin; Xia, Zhanbo | This presentation focuses on the ongoing investigation of defect states in the Ga2O3 bandgap using a range of defect spectroscopy methods that enable comprehensive characterization of deep level defects across the entire ~ 4.8 eV bandgap. | Session 5: Defects in Gallium Oxide and Nitride |
| 72 | Ab initio studies on segregation of n-type dopants and vacancies near beta-Ga2O3(010) surface | Wang, Jingyang; Clancy, Paulette | Using density functional theory, we conducted a comprehensive study on the thermodynamic preferrence of common n-type dopants (Si_Ga, Ge_Ga, Sn_Ga) and intrinsic defects (V_Ga, V_O) both near the (010)-surface and in the bulk of Ga2O3. | Session 5: Defects in Gallium Oxide and Nitride |
| 73 | Electronic properties of the Ga2O3-Fe2O3 system | Khalid, Shoaib; Sabino, Fernando; Janotti, Anderson | Here we present results for the electronic structure of Fe 2O 3 and Ga 2O 3 in both monoclinic and corundum phases using different exchange correlation functionals. | Session 5: Defects in Gallium Oxide and Nitride |
| 74 | Unusual Formation of Point Defects and Their Complexes in Ultra-wide Band Gap Beta-Ga2O3 | Johnson, Jared; Chen, Zhen; Varley, Joel; Jackson, Christine; Farzana, Esmat; Arehart, Aaron; Huang, Hsien-Lien; Ringel, Steven; Van de Walle, Chris; Muller, David; Hwang, Jinwoo | We present the first direct microscopic observation of the unusual formation of interstitial-divacancy complexes within beta-Ga2O3 lattice using atomic resolution scanning transmission electron microscopy. | Session 5: Defects in Gallium Oxide and Nitride |
| 75 | Donor and acceptor properties in Ga2O3 polymorphs | Lyons, John; Wickramaratne, Darshana; Varley, Joel | In this work, we evaluate the properties of acceptor and donor dopants in Ga 2O 3 polymorphs using first-principles calculations based on hybrid density functional theory. | Session 5: Defects in Gallium Oxide and Nitride |
| 76 | Optical Properties of Acceptor Impurities in Ga2O3 | Chatratin, Intuon; Sabino, Fernando; Reunchan, Pakpoom; Janotti, Anderson | We constructed configuration coordinate diagrams to determine the absorption and emission energies that can be compared with the optical absorption and photoluminescence measurements. | Session 5: Defects in Gallium Oxide and Nitride |
| 77 | Transition levels for impurities in β-Ga2O3 | Bhandari, Suman; Zvanut, Mary | Transition levels for impurities in β-Ga2O3 | Session 5: Defects in Gallium Oxide and Nitride |
| 78 | Bismuth-alloyed Ga2O3 as a novel p-type transparent conducting oxide | Cai, Xuefen; Sabino, Fernando P.; Janotti, Anderson; Wei, Suhuai | We show that dilute (Bi xGa 1-x) 2O 3 alloys could be good candidates for novel p-type transparent conducting oxide that will create new opportunities in Ga 2O 3-based device design. | Session 5: Defects in Gallium Oxide and Nitride |
| 79 | Direct Imaging on Strain Relaxation of MBE-grown Single Phase alpha-(Al,Ga)2O3 on m-sapphire Substrate in Atomic Resolution Using Scanning Transmission Electron Microscopy | Chang, Celesta; Jinno, Riena; Jena, Debdeep; Xing, Huili; Muller, David | Here, we show the relaxation mechanism of such films by performing strain analysis with scanning transmission electron microscopy (STEM). | Session 5: Defects in Gallium Oxide and Nitride |
| 80 | Ultrafast Optical Measurement of Defect Dynamics in β-Ga2O3 using Supercontinuum Pump-Probe Spectroscopy. | Singh, Arjan; Koksal, Okan; Tanen, Nicholas; Jena, Debdeep; Xing, Huili; Rana, Farhan | In this work, we use optical pump-probe spectroscopy that employs a supercontinuum pulse to probe the defects and their ultrafast dynamics in a wide energy interval within the material bandgap. | Session 5: Defects in Gallium Oxide and Nitride |
| 81 | X-ray diffraction studies of GaN p-i-n structures for high power electronics | Zimmerman, Alexandra; He, Jiaheng; Cheng, GuanJie; Del Gaudio, Davide; Occena, Jordan; Naab, Fabian; Nami, Mohsen; Li, Bingjun; Han, Jung; Goldman, Rachel | In this work, we examine the p-i interface of a series of GaN p-i-n structures prepared with and without ex-situ ambient exposure and/or chemical etching. | Session 5: Defects in Gallium Oxide and Nitride |
| 82 | Influence of interfacial defects on the electronic states at GaN p-i-n diode interfaces | Cheng, GuanJie; He, Jiaheng; Zimmerman, Alexandra; Del Gaudio, Davide; Naab, Fabian; Nami, Mohsen; Li, Bingjun; Han, Jung; Goldman, Rachel | Here, we report on the influence of regrowth processing steps on interfacial defects and their electronic signatures. | Session 5: Defects in Gallium Oxide and Nitride |
| 83 | Study of carbon-related point defects in C-doped GaN using photo-induced electron paramagnetic resonance spectroscopy | Paudel, Subash; Zvanut, Mary; Bockowski, Michal | We used photo-induced electron paramagnetic resonance (EPR) to study point defects in mm thick free-standing 10 17-10 19 cm -3 C-doped GaN. | Session 5: Defects in Gallium Oxide and Nitride |
| 84 | Phase change material programmable visible photonics | Simpson, Robert; Lu, Li; Ning, Jing; Martinez, Jose; Poh, Alyssa; Parikshit, Moitra; Mass, Tobias; Vytautas_Valuckas, Vytautas; Paniagua, Ramon; Kuznetsov, Arseniy | We will discuss how phase change materials can be used in visible photonics. | Session 6: Defects in Oxides and Chalcogenides |
| 85 | Electron mobility in crystalline and amorphous metal-oxide semiconductors | Evangelista, Igor; Janotti, Anderson | Here we investigate the microscopic origin of this intriguing effect. | Session 6: Defects in Oxides and Chalcogenides |
| 86 | Amorphous Oxide Semiconductors: role of disorder and composition in defect formation, carrier generation, and transport properties | Medvedeva, Julia | In this talk, complex deposition-structure-property relationships in several prototype AOSs are discussed. | Session 6: Defects in Oxides and Chalcogenides |
| 87 | Structural Dynamics in Amorphous Oxide Semiconductors and Its Role on Defect Formation and Transport | Burris, Corey; Medvedeva, Julia | In this work, ab-initio molecular dynamics simulations are combined with accurate density-functional calculations to study time- and temperature-dependent characteristics of defects with different formation energies and degree of localization in amorphous InOx . | Session 6: Defects in Oxides and Chalcogenides |
| 88 | Structure and properties of amorphous SrTiO3: a first principles study | Zhuravlev, Ivan; Medvedeva, Julia | Here we employ ab-initio molecular dynamics liquid-quench simulations and accurate density-functional calculations to understand how the local and medium-range structural characteristics change upon amorphization in STO. | Session 6: Defects in Oxides and Chalcogenides |
| 89 | Hydrogen doping of crystalline/amorphous In2O3 interface: the structure and electronic properties. | Sharma, Kapil; Medvedeva, Julia | In this work, amorphous/crystalline In 2O 3 Interface with >100 initial locations of H radical is investigated using ab-initio molecular dynamics and density functional calculations. | Session 6: Defects in Oxides and Chalcogenides |
| 90 | Thermoelectric properties of Pb2-xYxRu2O7-z pyrochlore | Akhbarifar, Sepideh; Lutze, Werner; Pegg, Ian | This work aims to study the respective properties of lead ruthenate (Pb 2Ru 2O 6.5) doped with yttrium oxide in the temperature range of 25 to 300°C. Lead ruthenate has a defect pyrochlore crystal structure and has metal-like electrical conductivity. | Session 6: Defects in Oxides and Chalcogenides |
| 91 | Role of defects in photocatalytic water splitting: Monodoped vs codoped SrTiO3 | Kumar, Manish; Bhattacharya, Saswata | We address the role of monodoping of a metal (Mn) and a non-metal (N), as well as their codoping in SrTiO 3 for photocatalytic water splitting using state of the art density functional theory and ab initio atomistic thermodynamics. | Session 6: Defects in Oxides and Chalcogenides |
| 92 | Rutile GeO2: an ultra-wide-band-gap semiconductor with ambipolar doping | Chae, Sieun; Mengle, Kelsey; Paik, Hanjong; Lee, Jihang; Heron, John; Kioupakis, Emmanouil | We identify Sb Ge, As Ge, and F O as possible donors with low ionization energies and propose growth conditions to avoid charge compensation by native acceptor-type defects. | Session 6: Defects in Oxides and Chalcogenides |
| 93 | Quasiparticle Properties of Sulfur Doped SrTiO3 | Lopez-Candales, Gabe; Zhang, Peihong | In this work, we report GW quasiparticle calculations of the electronic properties of sulfur doped of SrTiO3 using a recently developed accelerated GW approach [4] that allows efficient GW calculations for large system. | Session 6: Defects in Oxides and Chalcogenides |
| 94 | Defect physics in rare-earth doped wide band-gap materials | Hoang, Khang | In this talk, we present a hybrid density-functional study of the interaction between RE dopants (Er, Eu, Dy, etc.) and host materials (GaN and SrAl 2O 4), including intrinsic point defects and other impurities that may be present in the host materials. | Session 6: Defects in Oxides and Chalcogenides |
| 95 | Tuning the Transport Properties of Artificial Synapses: A DFT-Supported Experimental Approach | DAS, DIP; Barman, Arabinda; Sarkar, Pranab Kumar; Hubner, Rene; Kanjilal, Dinakar; Johari, Priya; Kanjilal, Aloke | Tuning the Transport Properties of Artificial Synapses: A DFT-Supported Experimental Approach | Session 6: Defects in Oxides and Chalcogenides |
| 96 | Hot-electron mediated ion diffusion in semiconductors for ion-beam nanostructuring | Lee, Cheng-Wei; Schleife, Andre | Ion-beam-based techniques are widely utilized to synthesize, modify, and characterize semiconductors at the nanoscale. | Session 6: Defects in Oxides and Chalcogenides |
| 97 | Defects in Chalcogenide Compound Semiconductors for Photovoltaics | Rockett, Angus | The characterization methods discussed include scanning tunneling microscopy, nuclear magnetic resonance, and capacitance methods including scanning microwave impedance microscopy. | Session 7: Defects: Structure and Strain 1 |
| 98 | Does lattice expansion really occur in defected low-temperature GaAs? | Escano, Mary Clare; Nguyen, Tien Quang; Kasai, Hideaki; Tani, Masahiko | We propose that the observed expansion maybe due to the increased bonds near the defect. | Session 7: Defects: Structure and Strain 1 |
| 99 | Off-centered Pb Interstitials in PbTe | Park, Sungjin; Ryu, Byungki | So we assumed Pb interstitial (Pb Int) as the major defect in PbTe instead V Te because it not only exhibited the second-lowest formation energy, but also could be responsible for the lattice parameter increase. | Session 7: Defects: Structure and Strain 1 |
| 100 | Quantifying Cation Disorder in ZnGeP2Thin Films Using Resonant Energy X-ray Diffraction | Schnepf, Rekha; Levy-Wendt, Ben; Tellekamp, Brooks; Ortiz, Brenden; Melamed, Celeste; Schelhas, Laura; Stone, Kevin; Toney, Michael; Toberer, Eric; Tamboli, Adele | In this work, we investigate two different methods to quantify cation ordering in ZnGeP 2thin films: a stretching parameter calculated from lattice constants (c/a), and an order parameter determined from the cation site occupancies (S). | Session 7: Defects: Structure and Strain 1 |
| 101 | Phonon Dispersion in Anisotropic Dilute Alloys by Weighted Dynamical-Matrix Approach | Aziziha, Mina; Akbarshahi, Saeed; Ghosh, Sayandeep; Pramanik, Prativa; Lewis, James; Romero, Aldo; Pittala, Suresh; Thota, Subhash; Seehra, Mohindar; Johnson, Matthew | We propose weighted dynamical-matrix (WDM) approach for calculating optical phonon spectra that is applicable to such complex alloys for a large range of alloying elements. | Session 7: Defects: Structure and Strain 1 |
| 102 | Simulations of Nitrogen Incorporation into GaAsN Alloys: The Role of Lattice Relaxation | Oliphant, Emily; Goldman, Rachel; Qi, Liang; Jen, Timothy; Tsui, Albert; Chowdhury, Drimik; Wang, Yongqiang | Here, we utilize density functional theory to compute minimum energy positions of NAs and surrounding neighbors. | Session 7: Defects: Structure and Strain 1 |
| 103 | Diffusion of Acceptor Dopants in Atomically Precise Devices | Ivie, Jeffrey; Anderson, Evan; Schmucker, Scott; Tracy, Lisa; Campbell, DeAnna; Scrymgeour, David; Katzenmeyer, Aaron; Mendez, Juan; Lu, Ping; Gao, Xujiao; Ward, Dan; Bussmann, Ezra; Lu, Tzu-Ming; Misra, Shashank | Here, we present our work in understanding the diffusion processes of acceptor dopants during CMOS compatible AP processing, which demonstrates highly counterintuitive behavior compared to donor dopants. | Session 7: Defects: Structure and Strain 1 |
| 104 | p-Type Doping of Pyrite FeS2 | Voigt, Bryan; Moore, William; Ray, Debmalya; Manno, Michael; Jeremiason, Jeff; Gagliardi, Laura; Aydil, Eray; Leighton, Chris | Here, we demonstrate p-doping by introducing phosphorus (P) during growth. | Session 7: Defects: Structure and Strain 1 |
| 105 | Insulator-Metal Transition in Co-Doped Pyrite FeS2 Single Crystals | Das, Bhaskar; Voigt, Bryan; Maiti, Moumita; Moore, William; Manno, Michael; Aydil, Eray; Leighton, Chris | In this work the problem of surface conduction is circumvented via a contacting scheme that provides access to the bulk, enabling wide- T-range transport studies of Co-doped FeS 2 single crystals. | Session 7: Defects: Structure and Strain 1 |
| 106 | Toward Deterministic Doping of Silicon via Dopant Containing Homopolymer | Perego, Michele; Seguini, Gabriele; Arduca, Elisa; Nomellini, Andrea; Caruso, Francesco; Sparnacci, Katia; Antonioli, Diego; Gianotti, Valentina; Chiarcos, Riccardo; Laus, Michele | In this talk, we will review our results on this topic providing preliminary data on the development of a deterministic doping strategy based on self-assembly materials. | Session 7: Defects: Structure and Strain 1 |
| 107 | Epitaxial growth, structure, and properties of MgZrN2, an emerging nitride semiconductor | Bauers, Sage; Mangum, John; Perkins, John; Lany, Stephan; Zakutayev, Andriy | This talk will focus on Mg xZr 2-xN 2. | Session 7: Defects: Structure and Strain 1 |
| 108 | Proton radiation-induced enhancement of conductivity of composite amorphous/nanocrystalline silicon thin films | Razieli, Zvie; Bosch, Nathan; Baby, Lagy; Stolik Valor, Lis; Yohay, Rachel; Rusack, Roger; Kakalios, James | Proton radiation-induced enhancement of conductivity of composite amorphous/nanocrystalline silicon thin films | Session 7: Defects: Structure and Strain 1 |
| 109 | Impurity diffusion induced dynamic electron donors in semiconductors | Liu, Wen-Hao; Luo, Jun-Wei; Li, Shu-Shen; Wang, Lin-Wang | Here, we present that the diffusion process in semiconductors can involve nonadiabatic electron excitations, rending it to be a more complicated process. | Session 7: Defects: Structure and Strain 1 |
| 110 | Dynamic Dark-Field X-ray Microscopy to Probe Mesoscale Defects and their Dynamics | Dresselhaus-Cooper, Leora | I extend DFXM to study structural dynamics, resolving how material defects show how crystals respond disturbances in their surroundings. | Session 8: Defects: Structure and Strain 2 |
| 111 | High-throughput identification of point defects in SiC | Davidsson, Joel; Ivady, Viktor; Armiento, Rickard; Abrikosov, Igor | We present the results from the workflow for various vacancy configurations in 4H-SiC. | Session 8: Defects: Structure and Strain 2 |
| 112 | Theoretical Investigations of the Hyperfine Coupling in Group IV-Vacancy Centers in Diamond Using Hybrid Density Functional Theory | Kuate Defo, Rodrick; Kaxiras, Efthimios; Richardson, Steven | 1,2 In this work we use density-functional theory (DFT) with the HSE06 exchange functional to compute the hyperfine tensors of several paramagnetic Group IV-vacancy centers in diamond and we compare our results with other experimental and theoretical results where available. | Session 8: Defects: Structure and Strain 2 |
| 113 | Theory on spectral diffusion and electrically driven interferometry of qubits | Udvarhelyi, Péter; Thiering, Gergo; Ivady, Viktor; Gali, Adam | We demonstrate this effect on silicon-vacancy qubit in silicon carbide by first principles methods (SiC) [1,2]. | Session 8: Defects: Structure and Strain 2 |
| 114 | Progress for high photon collection of color centers in quantum materials | Zhou, Tony; Zhou, Preston; Silverman, Gabriel; Ukah, Kelechi; Xie, Ling; Yacoby, Amir | In this work, we present an effective approach to tackle this fundamental limit and use NV center as an example for its application [3,4]. | Session 8: Defects: Structure and Strain 2 |
| 115 | Modeling the Electronic Structure of Phosphorus Donor Clusters in Quantum Devices | Campbell, Quinn; Schultz, Peter; Brickson, Mitchell; Jacobson, Noah; Maurer, Leon; Bussmann, Ezra; Misra, Shashank; Baczewski, Andrew | Modeling the electronic structure of phosphorus donor clusters is essential for understanding and predicting the behavior of quantum devices fabricated using atomic precision advanced manufacturing (APAM) techniques. | Session 8: Defects: Structure and Strain 2 |
| 116 | Electron paramagnetic resonance study of sodium guests in silicon clathrates, a cage-like crystalline silicon allotrope | Schenken, William; Liu, Yinan; Krishna, Lakshmi; Majid, Ahmad; Koh, Carolyn; Taylor, P; Collins, Reuben | We present an EPR study of Na guests in Type II Si clathrate powders with ≤1 at. | Session 8: Defects: Structure and Strain 2 |
| 117 | Quadrupolar interactions between acceptor pairs in p-doped semiconductors | Durst, Adam; Yang-Mejia, Genesis; Bhatt, Ravindra | Modeling individual acceptors via the spherical model of Baldereschi and Lipari, we calculate matrix elements of the quadrupole tensor between the four degenerate ground states and show that the acceptor has a nonzero quadrupole moment. | Session 8: Defects: Structure and Strain 2 |
| 118 | Nanoscale NV-detected Electron Spin Resonance at 115 GHz and 4.2 Tesla | Fortman, Benjamin; Pena, Junior; Takahashi, Susumu | Within this talk we present our development and application of adiabatic pulses at 115 GHz to overcome this challenge. | Session 8: Defects: Structure and Strain 2 |
| 119 | Defects in 4H-SiC Studied by Electrically Detected Magnetic Resonance and Electrically Detected Electron Nuclear Resonance | Waskiewicz, Ryan; Manning, Brian; McCrory, Duane; Lenahan, Patrick | We utilize electrically detected magnetic resonance (EDMR) and electrically detected electron nuclear double resonance (EDENDOR) to observe defects responsible for recombination in fully processed 4H-SiC bipolar junction transistors (BJTs). | Session 8: Defects: Structure and Strain 2 |
| 120 | Hybrid spintronics as a novel platform for quantum sensing. | Lozovoi, Artur; Jayakumar, Harishankar; Daw, Damon; Meriles, Carlos | We propose a novel spin readout technique 1 based on a non-local hybrid spin-to-charge conversion that takes advantage of drift and diffusion of the charge carriers in semiconductors in the presence of electric field. | Session 8: Defects: Structure and Strain 2 |
| 121 | High-density defect ensembles in SiC for superradiance and magnetometry | Brereton, Peter; Rittenhouse, Seth; Wiedemann, Joseph; Vanhoy, Jeffrey; Abraham, John | We explore the details of the superradiant transition in the 4H-SiC silicon vacancy and show possible routes toward engineering suitable defect ensembles. | Session 8: Defects: Structure and Strain 2 |
| 122 | Extracting Electron Densities in n-Type GaAs from Raman Spectra. | Ochoa, Maicol; Maslar, James; Bennett, Herbert | To overcome this limitation, we have developed a model that is valid at any temperature, any doping level, and for arbitrary values of the ratio Q 2/α (where Q is the magnitude of the normalized wavevector, and α is the normalized frequency used in the Raman measurements). | Session 9: Electronic Structure: Theory & Spectra |
| 123 | Microscopic perspective on the magnetoelectric response of an insulator | Mahon, Perry; Sipe, John | We implement a microscopic theory of polarization and magnetization to calculate the magnetoelectric response of an insulator at zero temperature. | Session 9: Electronic Structure: Theory & Spectra |
| 124 | Accurate, Ground State Electronic and Transport Properties of h- BN | Malozovsky, Yuriy; Bamba, Cheik; Stewart, Anthony; Franklin, Lashounda; Bagayoko, Diola | We present an ab-initio, density functional theory (DFT) description of ground state electronic and related properties of hexagonal boron nitride (h-BN). | Session 9: Electronic Structure: Theory & Spectra |
| 125 | Electronic structure of p-type transparent conducting oxide CuAlO2 | Salah, Mohamed; Yoon, Joonseok; Liu, Xiaosong; Yang, Wanli; Mun, Bongjin; El-Desoky, Mohamed; Hussain, Zahid; Ju, Honglyoul; Mo, Sung-Kwan | In this work, we combine angle-resolved photoemission spectroscopy (ARPES) and X-ray emission and absorption spectroscopies (XES & XAS), to visualize the low-energy electronic structure. | Session 9: Electronic Structure: Theory & Spectra |
| 126 | A higher-dimensional electronic superstructure in a misfit chalcogenide (PbSe)1.16(TiSe2)2 | Kohsaka, Yuhki; Ueno, Teppei; Machida, Tadashi; Hanaguri, Tetsuo; Akimitsu, Jun; Kobayashi, Kaya | Here we show a higher-dimensional electronic modulation in a misfit chalcogenide (PbSe) 1.16(TiSe 2) 2 with spectroscopic imaging scanning tunneling microscopy. | Session 9: Electronic Structure: Theory & Spectra |
| 127 | Experimental Observation of Hidden Berry Curvature in Inversion-Symmetric Bulk 2H-WSe2 | Cho, Soohyun; Park, Seung Ryong | In order to see if CD-ARPES is indeed representative of hidden Berry curvature within a layer, we use tight binding analysis as well as density functional calculation to calculate the Berry curvature and local OAM of a monolayer WSe 2. | Session 9: Electronic Structure: Theory & Spectra |
| 128 | Theoretical study on symmetries and properties of three-dimensional valleytronic systems | Takeichi, Manabu; Murakami, Shuichi | In this talk, we show a list of space groups to realize three-dimensional materials with such a valley degree of freedom. | Session 9: Electronic Structure: Theory & Spectra |
| 129 | Atomic and Electronic Structure of the Edges of multilayer and Monolayer Tin disulfide (SnS2) | Yan, Tao | This paper reports on density functional theory (DFT) simulations and experimental measurements of the atomic and electronic structure of the edges of multilayer and monolayer SnS 2 under different chemical conditions. | Session 9: Electronic Structure: Theory & Spectra |
| 130 | Theoretical and experimental measurements for the (Eu1-xScx)2Zr2O7 Zirconate pyrochlore | Boujnah, Mourad | We detected a substitutional solid solution with complex mechanism, in air and oxygen flux. | Session 9: Electronic Structure: Theory & Spectra |
| 131 | ACCURATE, SELF – CONSISTENT DENSITY FUNCTIONAL THEORY DESCRIPTION OF ROCK-SALT MAGNESIUM SELENIDE (MgSe) | Ayirizia, Blaise; Bhandari, Uttam; Malozovsky, Yuriy; Franklin, Lashounda; Bagayoko, Diola | We present the ground state band structure and the total (DOS) and partial (pDOS) densities of states. | Session 9: Electronic Structure: Theory & Spectra |
| 132 | First principle investigation of electronic, transport, and bulk properties of zinc-blende magnesium sulfide (MgS) | Bhandari, Uttam; Ayirizia, Blaise; Malozovsky, Yuriy; Franklin, Lashounda; Bagayoko, Diola | We have studied the electronic, structural, and transport properties of the zinc-blende magnesium sulfide (zb-MgS), using Density Functional Theory (DFT). | Session 9: Electronic Structure: Theory & Spectra |
| 133 | Towards a Th-229 Nuclear Clock: Measurements of the Bandgap of ThF4 by Electron Spectroscopy Techniques | Caciuffo, Roberto; Gouder, Thomas; Eloirdi, Rachel; Osipenko, Mikhail; Giovannini, Mauro; Martin, Richard | Here, we present an experimental determination of the bandgap of ThF 4 performed by two different techniques. | Session 9: Electronic Structure: Theory & Spectra |
| 134 | Analysis of pre-edge of oxygen K-edge X-ray absorption spectra of transition metal oxides | Qiao, Ruimin; Roychoudhury, Subhayan; Prendergast, David; Yang, Wanli | In collaboration with experimentalists, we used MBXAS to simulate the oxygen-K edge XAS of 3-d transition metal oxides (TMO). | Session 9: Electronic Structure: Theory & Spectra |
| 135 | A detailed Raman study of the photochemical oxidation process of monolayer CVD grown graphene | HAIDARI, MOHD MUSAIB; Kim, Jin Hong; Choi, Jin Sik | This work reveals some details about the oxidation process of graphene and sets the ground for transparent flexible optical and electrical applications of functionalized graphene. | Session 9: Electronic Structure: Theory & Spectra |
| 136 | Realization of BaZrS3 chalcogenide perovskite thin films for optoelectronics | Wei, Xiucheng; Hui, Haolei; Han, Mengjiao; Perera, Samanthe; Lin, Junhao; Sun, Yi-Yang; Zhang, Shengbai; Zeng, Hao | Here we report the fabrication of BaZrS 3 thin films, by sulfurization of corresponding BaZrO 3 films deposited by pulsed laser deposition. | Session 9: Electronic Structure: Theory & Spectra |
| 137 | Carrier Lifetime and Mobility in GaAsNBi Alloys | Arnold, Brennan; Heyman, James; Chen, Andra; Mitchell, Jared; Goldman, Rachel | We report measurements of the photoconductivity lifetime and photocarrier mobility in a series of GaAs 1-x-yN xBi y samples grown on GaAs by MBE. | Session 10: Electronic Structure: Thermodynamic & Optical Properties |
| 138 | Study of β-Ga2O3 Photoluminescence with Above Bandgap Laser Excitation | Lapp, Jeffrey; Thapa, Dinesh; Huso, Jesse; Canul, Amrah; McCluskey, Matthew; Bergman, Leah | Study of β-Ga2O3 Photoluminescence with Above Bandgap Laser Excitation | Session 10: Electronic Structure: Thermodynamic & Optical Properties |
| 139 | Optical properties of GaN/Er:GaN/GaN core-cladding planar waveguides | Yan, Yaqiong; Sun, Zhenyu; Smith, Trey; Zhao, Weiping; Li, Jing; Lin, Jingyu; Jiang, Hongxing | We report here the successful fabrication and optical characterization of GaN/Er:GaN/GaN core-cladding planar waveguides (PWGs). | Session 10: Electronic Structure: Thermodynamic & Optical Properties |
| 140 | Optical properties of indium tin oxide thin-films at high temperature | Kim, Jiwoong; Shrestha, Sujan; Souri, Maryam; Connell, John; Park, Sungkyun; Seo, Ambrose | We have investigated the optical properties of ITO thin-films up to 800 °C using in situ optical spectroscopic ellipsometry equipped within a vacuum chamber. | Session 10: Electronic Structure: Thermodynamic & Optical Properties |
| 141 | On the Thermo-Optical Interactions at the Band-Edge in ZnO Thin Films | Canul, Amrah; Thapa, Dinesh; Lapp, Jeffrey; Norton, Grant; Bergman, Leah | An analytical approach based on the derivative of the absorption spectra was used to explore the nature of the near band edge (NBE) of ZnO thin films grown via the sputtering technique. | Session 10: Electronic Structure: Thermodynamic & Optical Properties |
| 142 | Comparison of ZnO Nanoparticles Synthesized by Microwave-assisted and Precipitation Method | Rathnasekara, Rusiri; Parameswar, Hari | In this work, Zinc Oxide (ZnO) Nanoparticles were synthesized using precipitation and microwave methods with different pH values (8, 9, and 10). | Session 10: Electronic Structure: Thermodynamic & Optical Properties |
| 143 | Realizing GaN/Er:GaN/GaN core-cladding planar waveguide gain medium via hydride vapor phase epitaxy | Sun, Zhenyu; Yan, Yaqiong; Smith, Trey; Zhao, Weiping; Li, Jing; Lin, Jingyu; Jiang, Hongxing | We report the realization of a GaN/Er:GaN/GaN core-cladding PWG structure grown by hydride vapor phase epitaxy (HVPE) and processed by mechanical and chemical-mechanical polishing. | Session 10: Electronic Structure: Thermodynamic & Optical Properties |
| 144 | Two-photon absorption spectroscopy and anisotropy of bulk zincblende and diamond symmetry semiconductors and quantum dots | Furey, Brandon; Barba-Barba, Rodrigo Misael; Bernal, Alan; Shah, Tushti; Korgel, Brian; Carriles, Ramon; Mendoza Santoyo, Bernardo; Downer, Michael | We are developing a model to explain the spectra for the nanocrystalline response from ab initio calculations using length gauge theory for bulk Si. | Session 10: Electronic Structure: Thermodynamic & Optical Properties |
| 145 | Scanning Photocurrent Measurements of Degenerately Doped Si | de Haan, Maarten; Liu, Tianhan; Wang, Xi; Gao, Hanwei; Xiong, Peng | Here, we present SPCM measurements of a degenerately doped silicon substrate. | Session 10: Electronic Structure: Thermodynamic & Optical Properties |
| 146 | Temperature dependence of the indirect-gap photoluminescence from Ge | Menendez, Jose; Poweleit, Christian; Tilton, Sean | We report here a PL study of high-quality Ge samples at temperatures 10 K ≤ T ≤ 300 K. | Session 10: Electronic Structure: Thermodynamic & Optical Properties |
| 147 | First-principles calculation of Jerk current in polar and nonpolar semiconductors | Mendoza Santoyo, Bernardo; Fregoso, Benjamin; Panday, Suman | We present a first-principles calculation of the Jerk current spectrum in prototypical semiconductors Si, CdSe, GaAs and novel two-dimensional ferroelectric monolayer GeSe, GeS, SnS and SnSe. | Session 10: Electronic Structure: Thermodynamic & Optical Properties |
| 148 | Exploration of Free Carrier Relaxation Dynamics in Bulk Gallium Arsenide | Halaoui, Adam; Diederich, Geoffrey; Siemens, Mark | Here, we present MDCS spectra of bulk gallium arsenide (GaAs) showing strain-induced separation of the heavy-hole and light-hole exciton states 1, exciton formation from free carriers across a broad energy distribution, and relaxation from GaAs quantum wells in the same sample. | Session 10: Electronic Structure: Thermodynamic & Optical Properties |
| 149 | Evaluation of BaTiS3 for Thermoelectric Applications by Using First Principles Theory | Paudel, Tula; Tsymbal, Evgeny | By using the first principles density functional theory and linearized Boltzmann transport theory, we calculate electrical conductivity, thermal conductivity and the Seebeck coefficient and report reasonable thermoelectric figure of merit, ZT, of about 0.4 at 800K for n-type BaTiS 3. | Session 10: Electronic Structure: Thermodynamic & Optical Properties |
| 150 | First Principles Study of Electronic, Magnetic and Thermoelectric Properties of Perovskite BaTbO3 | Jaishi, Dhurba; Yadav, Dinesh; Ghimire, Madhav | In this work, we have investigated the electronic, magnetic, and thermoelectric properties of BaTbO 3 using the density functional formalism. | Session 10: Electronic Structure: Thermodynamic & Optical Properties |
| 151 | NMR and Mössbauer study of p-type half-Heusler thermoelectrics Nb1−xTixFeSb | Tian, Yefan; Li, Rui; Vagizov, Farit; Ghassemi, Nader; Ren, Wuyang; Zhu, Hangtian; Ren, Zhifeng; Ross, Joseph | To investigate the local behavior of defects and mixed compositions in NbFeSb-based semiconductors, for improved thermoelectric efficiency, we have performed 93Nb and 121Sb NMR, as well as Mössbauer measurements, on pure NbFeSb and a series of p-type Ti-substituted (Nb,Ti)FeSb samples with different substitution levels. | Session 10: Electronic Structure: Thermodynamic & Optical Properties |
| 152 | Development of a high-k gate stack for atomic-precision advanced manufacturing | Lu, Tzu-Ming; Anderson, Evan; Campbell, DeAnna; Marshall, Michael; Lu, Ping; Schmucker, Scott; Tracy, Lisa; Robison, Mitchell; Arghavani, Reza; Maurer, Leon; Baczewski, Andrew; Ward, Daniel; Misra, Shashank | The views expressed in the article do not necessarily represent the views of the DOE or the U.S. Government. | Session 11: Electronic Thin Film Devices and Nanotechnology |
| 153 | Phase Controlling in HfO2 Bulk Single Crystal | Xu, Xianghan; Huang, Fei-Ting; Cheong, Sang-Wook | We investigate the evolution of structural phases with various thermal treatments and doping. | Session 11: Electronic Thin Film Devices and Nanotechnology |
| 154 | The effect of air-anneal on two-level tunneling systems of ion-beam sputtered amorphous SiO2 | Liu, Xiao; Abernathy, Matthew; Metcalf, Thomas; Granata, Massimo; Mereni, Lorenzo; Amato, Alex; Michel, Christophe; Cagnoli, Gianpietro | We discuss possible mechanisms for our observations. | Session 11: Electronic Thin Film Devices and Nanotechnology |
| 155 | Demonstration of two-dimensional hole gases (2DHG) in strained GeSn quantum wells | Tai, Chia-Tse; Lin, Cheng-Yu; Liu, Chia-You; Wang, Tz-Ming; Harris, Charles; Lu, Tzu-Ming; Li, Jiun-Yun | In this work, capacitively induced two-dimensional hole gases in undoped Ge/GeSn heterostructures were demonstrated. | Session 11: Electronic Thin Film Devices and Nanotechnology |
| 156 | High sensitivity neutron detectors based on hexagonal boron nitride epilayers | Maity, Avisek; Grenadier, Samuel; Li, Jing; Lin, Jingyu; Jiang, Hongxing | Here, we report the epitaxial growth of thick h- 10BN ( 10B enriched) epilayers and demonstration of thermal neutron detectors with a record high detection efficiency. | Session 11: Electronic Thin Film Devices and Nanotechnology |
| 157 | Defect effects on Electron Magneto-Transport in Quantum Wells | Huang, Danhong; Iurov, Andrii; Gao, Fei; Gumbs, Godfrey | The point-defect effects on the electron magneto-transport in a multiple quantum-well system are investigated by employing a many-body theory. | Session 11: Electronic Thin Film Devices and Nanotechnology |
| 158 | Atomistic Simulations of the Cold Source Field-Effect Transistor for Sub-60 mV/decade Switching | Prentki, Raphaël; Harb, Mohammed; Guo, Hong | We report the first simulations of CSFETs based on combining the nonequilibrium Green’s functions (NEGF) formalism with the tight-binding (TB) method, thereby capturing the atomistic details of the devices under nonequilibrium conditions. | Session 11: Electronic Thin Film Devices and Nanotechnology |
| 159 | Looking Back to Look Forward: How scarcity affects electronics cost and drives material research | Reese, Samantha; Carpenter, Alberta; Burton, Robin | Case studies will be presented showing how electronics manufacturing volume effects the raw material cost. | Session 11: Electronic Thin Film Devices and Nanotechnology |
| 160 | Angular Characterization of Magneto Optical Kerr-Effect by Ellipticity Modulation in Ultrathin Samples | Ramiro-Manzano, Fernando; Meseguer-Sánchez, Jaume; Cantos-Prieto, Fernando; Navarro-Moratalla, Efren | Here, we will show the peculiarities of the experiments and simulations of the angular response of Van der Waalls magnetic materials. | Session 11: Electronic Thin Film Devices and Nanotechnology |
| 161 | Designing and characterizing rare-earth upconverting nanoparticles as nanoNewton mechanical sensors. | McLellan, Claire; Fischer, Stefan; Siefe, Chris; Casar, Jason; Swearer, Dayne; Fukuhara, Masashi; Goodman, Miriam; Dionne, Jennifer | Using a custom confocal-AFM microscope, we explore the brightness of single UCNPs and are developing techniques to explore their force sensitivity. | Session 11: Electronic Thin Film Devices and Nanotechnology |
| 162 | Porous Carbon Nanotube Ring Resonators for Gas Sensing Application | McKenna, David; Davis, Henry; Cass, RJ; Vanfleet, Richard; Davis, Robert | We present our work characterizing the gas and time response of these resonators. | Session 11: Electronic Thin Film Devices and Nanotechnology |
| 163 | Role of dimensionality on thermodynamic properties in layered sulfides | Koocher, Nathan; Rondinelli, James | We formulate layer thickness dependent models of the anharmonic lattice properties and discuss how they may be used for design of thermal expansion coefficients in other chemistries. | Session 11: Electronic Thin Film Devices and Nanotechnology |
| 164 | Elastic Constants of Boron Arsenide and Boron Phosphide Crystals | Mahat, Sushant; Li, Sheng; Wu, Hanlin; Koirala, Pawan; Lv, Bing; Cahill, David | We report experimental results for picosecond ultrasonics (PU) studies of boron arsenide and boron phosphide crystals with zinc blend structure. | Session 11: Electronic Thin Film Devices and Nanotechnology |
| 165 | Microscopic model for contact electrification between solids and fluids | Willatzen, Morten; Lew Yan Voon, Lok; Wang, Zhong Lin | We present a new microscopic formalism based on a tight-binding Hamiltonian to describe charge transfer between two materials. | Session 11: Electronic Thin Film Devices and Nanotechnology |
| 166 | Nanotube-Templated Growth of Transition Metal Dichalcogenide Nanoribbons | Popple, Derek; Meyer, Scott; Cain, Jeffrey; Zettl, Alex | 2,3 In this work, we have employed a bottom-up gas-phase synthesis within carbon nanotubes to template the growth of TMD nanoribbons. | Session 11: Electronic Thin Film Devices and Nanotechnology |
| 167 | Highly Efficient Vertical SnS2 Nanoflake Photodetector Decorated with PbS Colloidal Quantum Dots | Giri, Binod; Rao, Pratap | In this work, we have fabricated photodetectors from vertical SnS 2 nanoflakes grown by a scalable close space sublimation and decorated by colloidal PbS QDs. | Session 12: Experimental Optical/Laser Devices and Applications |
| 168 | Fundamental limits on the performance of electromagnetic devices | Trivedi, Rahul; Angeris, Guillermo; Su, Logan; Fan, Shanhui; Vuckovic, Jelena | In this work, we show how to efficiently calculate provable bounds on performance metrics that are expressible as a quadratic form in the electric field for a general class of linear-optical devices using Lagrangian duality and convex relaxations. | Session 12: Experimental Optical/Laser Devices and Applications |
| 169 | Optical sensor development for toxic elements detection in liquids | Bhatt, C; Hartzler, Daniel; McIntyre, Dustin | Optical sensor development for toxic elements detection in liquids | Session 12: Experimental Optical/Laser Devices and Applications |
| 170 | Cryogenic Operation of Silicon Photonic Electro-Optic Modulators based on DC Kerr Effect | Chakraborty, Uttara; Carolan, Jacques; Clark, Genevieve; Bunandar, Darius; Notaros, Jelena; Watts, Michael; Englund, Dirk | In this work, we demonstrate DC Kerr-based modulation in silicon at a temperature of 5K at GHz speeds, showing the potential of DC Kerr modulators for use in large-scale silicon photonic integrated circuits for cryogenic computing. | Session 12: Experimental Optical/Laser Devices and Applications |
| 171 | Pump-probe experiment in a non-linear chaotic photonic cavity : modulation of a Physically Unclonable Function | Metais, Samuel; Foster, Amy; Foster, Mark | In our group, we use a non-linear truncated disk of silicon in a silicon dioxide background as a semi-chaotic cavity[2]. | Session 12: Experimental Optical/Laser Devices and Applications |
| 172 | Large emission enhancement and emergence of strong coupling with plasmons in nanoassemblies:Role of quantum interactions and finite emitter size. | DUTTA, RIYA; Jain, Kritika; Venkatapathi, Murugesan; Basu, Jaydeep | Here we report large radiative enhancements of quantum dot assemblies with extremely small metal nanoparticles and emitter-particle separations R of a few nanometers, where Purcell effect would lead to either no enhancements or quenching. | Session 12: Experimental Optical/Laser Devices and Applications |
| 173 | Multiscale electrothermal simulation of quantum cascade lasers | King, Michelle; Soleimanikahnoj, Sina; Knezevic, Irena | We present a strategy for simulating coupled heat and charge transport in QCLs, which occur on drastically different spatial scales, that employs a coupled ensemble Monte Carlo for electrons and phonons in a stage-level simulation of the active core and couples to a device-level heat diffusion simulation. | Session 12: Experimental Optical/Laser Devices and Applications |
| 174 | Selectively launching propagating surface plasmon from designed symmetric plasmonic structures | Gong, Yu; Joly, Alan G.; El-Khoury, Patrick Z.; Hess, Wayne P. | In our studies, we show the intensity of propagating SPPs launched from opposing edges of a symmetric trench structure can be controlled by the linear polarization of the optical field. | Session 12: Experimental Optical/Laser Devices and Applications |
| 175 | Fundamental thermal noise limits for high-Q/V optical microcavities | Panuski, Christopher; Hamerly, Ryan; Englund, Dirk | Here, we present a theoretical and experimental characterization of this thermal noise in high quality factor ( Q), small mode volume ( V) photonic crystal cavities. | Session 12: Experimental Optical/Laser Devices and Applications |
| 176 | Cryogenic electro-optic interconnect for superconducting circuits | Shomroni, Itay; Youssefi, Amir; Bernier, Nathan; Joshi, Yash; Uhrich, Philipp; Kippenberg, Tobias | Here we demonstrate a proof-of-principle experiment, showing that currently employed Ti-doped LiNbO modulators maintain the Pockels coefficient at 3K—a base temperature for classical microwave amplifier circuitry. | Session 12: Experimental Optical/Laser Devices and Applications |
| 177 | Photon Mediation of Electron Transitions in Quantum Cascade Lasers | Soleimanikahnoj, Sina; King, Michelle; Knezevic, Irena | In this work, we present a quantum-transport study of PA tunneling in QCLs based on a Markovian master equation for the density matrix and investigate the effect of PA tunneling on electron dynamics and state lifetime. | Session 12: Experimental Optical/Laser Devices and Applications |
| 178 | Extreme laser background suppression for resonance fluorescence in semiconductor nanostructures | Benelajla, Meryem; Benelajla, Meryem; Kammann, Elena; Karrai, Khaled | In this presentation, we will discuss in details the physics and optics of such a remarkable effect, which we mapped in details for the first time. | Session 12: Experimental Optical/Laser Devices and Applications |
| 179 | Quantized Microwave Faraday Rotation | Suresh, Vishnunarayanan; Pinsolle, Edouard; Lupien, Christian; Martz-Oberlander, Talia; Lilly, Michael; Reno, John; Gervais, Guillaume; Szkopek, Thomas; Reulet, Bertrand | Here we present the quantitative observation of microwave Faraday rotation conducted with GaAs/AlGaAs semiconductor heterostructure. | Session 12: Experimental Optical/Laser Devices and Applications |
| 180 | In-chip laser nano-structuring inside silicon with spatially modulated beams | Tokel, Onur; Ishraq, Aqiq; Sabet, Rana | This single-step, maskless method introduced a new capability, i.e., controlled 3D microfabrication capability at 1-µm resolution inside Si [1]. | Session 12: Experimental Optical/Laser Devices and Applications |
| 181 | Visible quantum dot light-emitting diodes with simultaneous high brightness and efficiency | Shen, Huaibin; Gao, Qiang; Zhang, Yanbin; Lin, Yue; Lin, Qingli; Li, Zhaohan; Chen, Ling; Zeng, Zaiping; Li, Xiaoguang; Jia, Yu; Wang, Shujie; Du, Zuliang; Li, Lin Song; Zhang, Zhenyu | Here, we report red, green and blue quantum dot light-emitting diodes based on CdSe/ZnSe core/shell structures that have these attributes 1. | Session 12: Experimental Optical/Laser Devices and Applications |
| 182 | Giant nonlieaner optical modulation based on layered materials beyond EFISH | Wang, Ying; Xiao, Jun; Yang, Sui; Zhang, Xiang | We report an electrically controlled new strategy to achieve giant and broadband modulation of second-order optical nonlinearities with an ultra-large modulation strength as well as efficiency. | Session 13: Experimental optical spectroscopic measurements of 2D materials |
| 183 | Probing the Influence of Dielectric Environment upon Volume-confined Hyperbolic phonon Polaritons | Fali, Alireza; White, Samuel; Folland, Thomas G; Aghamiri, Neda; Caldwell, Joshua; Haglund, Richard; Abate, Yohannes | We employ nano-scale imaging and spectroscopy techniques to elucidate the characteristics of HPhPs to elucidate polariton characteristics as a function of the complex refractive index of the substrate, including the impact of both the real and imaginary contributions. | Session 13: Experimental optical spectroscopic measurements of 2D materials |
| 184 | Polarized Raman spectroscopy in monolayer ReSe2 | Carvalho de Resende, Geovani; Carvalho, Bruno; Pimenta, Marcos | In this work, polarized Raman spectroscopy is used to investigate the anisotropic behavior in monolayer ReSe2. | Session 13: Experimental optical spectroscopic measurements of 2D materials |
| 185 | Langmuir-Blodgett of Black Phosphorus Thin Films and Photodiodes | Mao, Jian; Kena-Cohen, Stephane | We will present our results on the development of a Langmuir-Blodgett (LB) protocol which is well suitable for assembling BP nanosheets into thin films. | Session 13: Experimental optical spectroscopic measurements of 2D materials |
| 186 | Photocurrent Spectroscopy of Titanium Trisulfide Nanoflakes | Lian, Zhen; Wang, Tianmeng; Li, Zhipeng; Shi, Sufei | In this work, we carry out low-temperature polarization-dependent photocurrent spectroscopy characterization of TiS3 ribbons. | Session 13: Experimental optical spectroscopic measurements of 2D materials |
| 187 | Substrate-Mediated Hyperbolic Phonon Polaritons in MoO3 | Schwartz, Jeffrey; Le, Son; Krylyuk, Sergiy; Davydov, Albert; Centrone, Andrea | This work enhances the ability to engineer nanophotonic devices by leveraging substrate morphology to control polariton propagation. | Session 13: Experimental optical spectroscopic measurements of 2D materials |
| 188 | Giant second harmonic generation from polar van der Waals Bismuth tellurohalide semiconductors | Padmanabhan, Prashant; Gilinsky, Samuel; Kwock, Kevin; Sirica, Nicholas; Kim, Jaewook; Cheong, Sang-Wook; Prasankumar, Rohit | Here, we report the first second harmonic generation (SHG) studies of the bulk polar semiconductors BiTeBr and BiTeI. | Session 13: Experimental optical spectroscopic measurements of 2D materials |
| 189 | Nanoscale imaging and spectroscopy of charge carrier distribution with terahertz and mid infrared near-field nanoscopy | Aghamiri, Neda; Huth, Florian; Huber, Andreas; Fali, Alireza; Hillenbrand, Rainer; Abate, Yohannes | We introduce hyperspectral THz nano-imaging by combining scattering-type scanning near-field optical microscopy (s-SNOM) with THz time-domain spectroscopy (TDS). | Session 13: Experimental optical spectroscopic measurements of 2D materials |
| 190 | Raman Studies on Polytypism in Layered Gallium Selenide | Lim, Soo Yeon; Lee, Jae-Ung; Kim, Jung Hwa; Liang, Liangbo; Kong, Xiangru; Nguyen, Thanh-Huong; Lee, Zonghoon; Cho, Sunglae; Cheong, Hyeonsik | We found different ultra-low-frequency Raman spectra of inter-layer vibrational modes even for the same thickness due to GaSe polytypism. | Session 13: Experimental optical spectroscopic measurements of 2D materials |
| 191 | Ultrafast Carrier Recombination from Quantum Pillars in Black Silicon | Kalem, Seref | We report on ultrafast photoluminescence(PL) phenomena from black silicon produced by ion etching using chlorine plasma. | Session 13: Experimental optical spectroscopic measurements of 2D materials |
| 192 | Anisotropic optical and structural properties of hexagonal boron nitride epilayers probed by optical ellipsometry | McKay, Michael; Li, Jing; Lin, Jingyu; Jiang, Hongxing | Anisotropic optical and structural properties of hexagonal boron nitride epilayers probed by optical ellipsometry | Session 13: Experimental optical spectroscopic measurements of 2D materials |
| 193 | Unraveling nonlinear formation and relaxation of excitons in atomically thin 2D semiconductors | Strasbourg, Matthew; Johns, Cory; Darlington, Thomas; Schuck, Jim; Hone, James; Borys, Nicholas | These studies reveal a complex interplay between multiexciton states and single-exciton states in 2D materials that depends on both the density and excitation energy of the initial exciton population. | Session 13: Experimental optical spectroscopic measurements of 2D materials |
| 194 | Dipole Orientation Shift of Ga2Se2 by Quantum Confinement | Xiao, Ke; Yan, Tengfei; Cui, Xiaodong | In this report we study the direction-resolved photoluminescence of 2D Ga 2Se 2 at various thickness. | Session 13: Experimental optical spectroscopic measurements of 2D materials |
| 195 | Valley Phonons and Exciton Complexes in a Monolayer Semiconductor | He, Minhao; Rivera, Pasqual; Van Tuan, Dinh; Wilson, Nathan; Yang, Min; Taniguchi, Takashi; Watanabe, Kenji; Yan, Jiaqiang; Mandrus, David; Yu, Hongyi; Dery, Hanan; Yao, Wang; Xu, Xiaodong | Here, we report the observation of multiple valley phonons – phonons with momentum vectors pointing to the corners of the hexagonal Brillouin zone, in monolayer WSe 2. | Session 13: Experimental optical spectroscopic measurements of 2D materials |
| 196 | Microcavity Organic Light Emitting Diodes with Higher Order Resonance Modes | Dahal, Ekraj; Isenhart, Benjamin; Allemeier, David; Cianciulli, Karen; White, Matthew | We investigate the emission spectrum through the fundamental and higher order resonant modes using a single organic emitter molecule, just by designing the microcavity structure alone. | Session 13: Experimental optical spectroscopic measurements of 2D materials |
| 197 | Semiconductor and Nanostructured Materials and Devices | Kherani, Nazir | Semiconductor and Nanostructured Materials and Devices | Session 14: Fellows of FIAP |
| 198 | The Taming of the Superconducting Qubit: A Tale of Loss | Murray, Conal | After a brief introduction into superconducting transmon qubits, I will discuss how dielectric loss impacts their relaxation times and how we can effectively model such behavior using analytical and computational approaches. | Session 14: Fellows of FIAP |
| 199 | Addtive Manufacturing of Magnetic Materials for Clean Energy Applications | Paranthaman, Mariappan | The main goal of this research is to develop a process to print near-net shape NdFeB polymer bonded magnets and to minimize the cost associated with manufacturing. | Session 14: Fellows of FIAP |
| 200 | Startups: The Place to Be | Kim, Matt | Startups: The Place to Be | Session 14: Fellows of FIAP |
| 201 | Application of Atomic Layer Deposited Films to Cultural Heritage Objects | Phaneuf, Raymond | Application of Atomic Layer Deposited Films to Cultural Heritage Objects | Session 14: Fellows of FIAP |
| 202 | First principles study of defect properties of II-VI photovoltaic materials | Wei, Suhuai | In this talk, using II-V thin-film solar cell absorber materials Cd(Te,Se), Cu(In,Ga)Se 2 (CIGS) and Cu 2ZnSnS2 (CZTS) as examples, I will discuss how theoretical first-principles studies can be used to better understand and optimize the solar cell performance. | Session 15: First Principles Approaches to Defects |
| 203 | First-Principles Study on the Defect Physics of Ternary Chalcopyrite ZnGeP2 through Hybrid Functional | Huang, Menglin; Wang, Shanshan; Chen, Shiyou | Here we study the defect physics in ZnGeP 2 using the density functional theory (DFT) calculations with a hybrid functional. | Session 15: First Principles Approaches to Defects |
| 204 | Dimensionality-suppressed chemical doping in 2D semiconductors: the cases of phosphorene, MoS2, and ReS2 from first-principles | Yang, Ji-Hui | Here by decomposing the defect IEs into the neutral single-electron defect level, the structural relaxation energy gain, and the electronic relaxation energy cost, we propose a conceptual picture that the large defect IEs are caused by two effects of reduced dimensionality. | Session 15: First Principles Approaches to Defects |
| 205 | First-principles study of defect physics in a photovoltaic semiconductor Cu2ZnGeSe4 | Cai, Lele; Chen, Shiyou | Here we study the intrinsic point defects in Cu 2ZnGeSe 4 using the density functional theory calculations with both the generalized gradient approximation and the hybrid functional. | Session 15: First Principles Approaches to Defects |
| 206 | First principles calculations of phonons and Raman and infrared spectra in ZnGeGa2N4 . | Ratnaparkhe, Amol; Lambrecht, Walter | Here, a first-principles study of the phonons in this material is presented. | Session 15: First Principles Approaches to Defects |
| 207 | Energy landscape of vacancy-related defects in silicon: a comprehensive picture from DFT and GW | Herrero-Saboya, Gabriela; Martin-Samos, Layla; Hemeryck, Anne; Richard, Nicolas | They have been the subject of extensive studies both experimental and theoretical. | Session 15: First Principles Approaches to Defects |
| 208 | Charged Defects in TiO2 Anatase: A Comparative Study of Hybrid DFT, GW and BSE to Explore Optical Properties | Basera, Pooja; Bhattacharya, Saswata | Knowing the most stable defects, we aim an accurate theoretical estimation of the optical properties of doped TiO 2. | Session 15: First Principles Approaches to Defects |
| 209 | The Barrier to the Small Polaron Formation in Metal Peroxides | Yuan, Shuaishuai; Wang, Zi; Baron, Maximilian; Bevan, Kirk | In this work, we provide ab initio insights into the polaron formation process and focus on exploring the physical origins of the barrier to polaron formation. | Session 15: First Principles Approaches to Defects |
| 210 | Machine learned defect and impurity levels in perovskite halides and CdTe | Mannodi Kanakkithodi, Arun Kumar; Sen, Fatih; Toriyama, Michael; Davis, Michael; Chan, Maria | In this talk, we will describe using machine learning (ML) trained on DFT data for defect levels in hybrid perovskite halides [1] and CdTe [2] photovoltaic materials. | Session 15: First Principles Approaches to Defects |
| 211 | Many-body embedding for excited states of Fe in III-nitrides | Dreyer, Cyrus; Muechler, Lukas; Roesner, Malte | Using Fe in GaN and AlN as an example, we address this issue by treating the defect as a correlated subspace embedded in the lattice. | Session 15: First Principles Approaches to Defects |
| 212 | Monte Carlo Simulations of Non-Linear Evolution of Materials Resistivity | Hancock, Steven; Abate, Yohannes; Landau, David | We employed an experimentally motivated Monte Carlo simulation to calculate the conductance as a function of charged dopant concentration to investigate the non-linear evolution of the resistivity with annealing time in oxygen deficient thin films. | Session 15: First Principles Approaches to Defects |
| 213 | Formation energies of charged defects in 2D materials – a new perspective | O’Hara, Andrew; Tuttle, Blair; Zhang, Xiaoguang; Pantelides, Sokrates | In this work, we present an alternative formalism based on statistical mechanics, which dictates that supercells are naturally neutral: “charged defects” are merely ionized, by trading carriers with the energy bands (charge neutrality of the crystal is an essential ingredient of the statistical mechanics of electrons in semiconductors). | Session 15: First Principles Approaches to Defects |
| 214 | Origin of n-type conductivity of monolayer MoS2 | Singh, Akash; Singh, Abhishek | Here, using hybrid density functional theory (DFT), we carried out an extensive study of often observed native point defects i.e., VS , VMo , VS2 , VMoS3 , VMoS6 , MoS2 , and S2Mo and found that none of them cause n-type doping. | Session 15: First Principles Approaches to Defects |
| 215 | Subterranean Visualization Through Multi-Sensor Fusion | Morris, Joe | I will describe challenges associated with engineered geothermal systems (EGS) and hydraulic fracturing in shale formations. | Session 16: Imaging in Industry |
| 216 | How Self-Driving Cars Find Their Way | McCormick, Colin | I will describe the basics of SDC technology, give a brief summary of the economic and policy landscape, and highlight ways that physicists can enter this important and interesting field. | Session 16: Imaging in Industry |
| 217 | Augmented Reality in Aerospace | Peterson, Shelly | Augmented Reality in Aerospace | Session 16: Imaging in Industry |
| 218 | The Role of Physics in Overhead Imaging | Edwards, Jonathan | This presentation will examine illustrative surveillance concepts for defense applications using unmanned and space-based platforms. | Session 16: Imaging in Industry |
| 219 | The Global Environmental Monitoring System (GEMS) CubeSat Microwave Radiometer Constellation for Weather and Climate Intelligence | Hurowitz, Michael | The clear need presented in this study has driven the laboratory-level development of large geostationary filled-and synthetic-aperture microwave sounders throughout the past period of more than four decades. | Session 16: Imaging in Industry |
| 220 | Mid-IR GeSn alloys with narrow band gaps beyond 8 μm | Menendez, Jose; Xu, Chi; Kouvetakis, John | Our model includes excitonic, band filling (Burstein-Moss), and non-parabolicity effects. | Session 17: Infrared Sensing and Imaging |
| 221 | Antimonides T2SLS Infrared Focal Plane Arrays for Space Remote Sensing Applications | Gunapala, Sarath | We have successfully fabricated MWIR HOT-BIRD FPA and integrated with a dewar cooler assembly for the CubeSat Infrared Atmospheric Sounder (CIRAS) 6U CubeSat. | Session 17: Infrared Sensing and Imaging |
| 222 | Low-cost infrared imaging technology development at the Air Force Research Laboratory | Kiefer, Arnold; Reyner, Charles; Duran, Joshua; Claflin, Bruce; Ariyawansa, Gamini; Vella, Jarrett | Low-cost infrared imaging technology development at the Air Force Research Laboratory | Session 17: Infrared Sensing and Imaging |
| 223 | Photonics for Mobile Handset through Automotive 3D Sensing Consumer Applications | Collings, Brandon | This presentation will provide an overview of the architectures of these 3D sensor systems, their underlying enabling photonic technologies, including VCSEL arrays, narrow linewidth semiconductor lasers, MEMS and optomechanical packaging, and how such complex technological solutions are being successfully brought to the consumer market. | Session 17: Infrared Sensing and Imaging |
| 224 | Mid-Wave Infrared Resonant Cavity Detectors | Wicks, Gary | Our approach reduces dark current by reducing the volume of the detector’s absorber layer. | Session 17: Infrared Sensing and Imaging |
| 225 | From Innovation to the Marketplace: The Role of a Physicist | Davis, Scott | I will highlight examples where my physics training proved invaluable in both obvious but also less obvious ways. | Session 18: Innovations from Industry |
| 226 | Google Quantum Computing’s Many Paths | Ostby, Eric | Google Quantum Computing’s Many Paths | Session 18: Innovations from Industry |
| 227 | Pake Prize: A Physics Career in Industry | Bray, James | I begin with a general look at US R&D expenditures in industry compared to academia and government in the recent past and how these expenditures divide among basic research, applied research, and development. | Session 18: Innovations from Industry |
| 228 | Academia to Entrepreneurship- Who is this for? | Venkatesan, Thirumalai | I will use examples from several of my students and colleagues’ startups and my own experience in running a company for over three decades amidst an academic career. | Session 18: Innovations from Industry |
| 229 | Rocket Science is Just Cool | Cheney, Janica | This presentation will provide a behind the scenes look at the engineering and physics of past and current space missions using solid rocket motors from the perspective of a rocket scientist. | Session 18: Innovations from Industry |
| 230 | Introduction to quantitative imaging | Hall, Timothy | Physicists’ contribution to this effort includes developing new imaging biomarkers, creating simulations of the physical interactions of image formation (in silico phantoms), and creating methods for objectively quantifying the technical performance of the system. | Session 19: Metrology in Medical Imaging |
| 231 | Importance of Statistical Metrology Framework for Quantitative Imaging Applications | Obuchowski, Nancy | In this presentation we examine several clinical trials using quantitative imaging. | Session 19: Metrology in Medical Imaging |
| 232 | Quantitative Imaging Applications for Radiography and Computed Tomography | Armato, Sam | Quantitative Imaging Applications for Radiography and Computed Tomography | Session 19: Metrology in Medical Imaging |
| 233 | PET/CT and PET/MR quantitative imaging applications | Smith, Anne | PET/CT and PET/MR quantitative imaging applications | Session 19: Metrology in Medical Imaging |
| 234 | Better Medicine through Measurement: Developments and Applications of Quantitative Magnetic Resonance Imaging | Boss, Michael | This talk will provide an overview of important quantitative imaging biomarkers (QIBs) in MRI, highlighting their current and future applications, the challenges in measurement science and implementation, and the current status and progress of QIBs towards widespread clinical adoption. | Session 19: Metrology in Medical Imaging |
| 235 | Data science and video games | Stirling, Spencer | We use machine learning to touch each of these facets, hoping to improve engagement, profitability, and fun! | Session 20: New Ways of Seeing with Data Science |
| 236 | Modeling complex physical systems with big data and machine-learning | Hamann, Hendrik; Lu, Siyuan | In this talk we present a general framework, which advances such endeavor. | Session 20: New Ways of Seeing with Data Science |
| 237 | Machine learning for seeing and hearing more | Riley, Patrick | I’ll survey some exciting results from the Google Accelerated Science team in the areas of cellular imaging for biomedical research, extracting surprising results from human clinical imaging, and disease staging from auditory signals. | Session 20: New Ways of Seeing with Data Science |
| 238 | Machine Learning in Scanning probe microscopy: accelerating imaging, enhancing resolution and Bayesian methodologies for theory-experiment matching | Vasudevan, Rama; Kalinin, Sergei; Kelley, Kyle; Jesse, Stephen; Ziatdinov, Maxim; Borodinov, Nikolay | In this talk, I will discuss how SPM can be greatly enhanced via careful and tailored use of machine/statistical learning methodologies in every aspect, from data acquisition to real-time analytics to model comparison and selection. | Session 20: New Ways of Seeing with Data Science |
| 239 | Immunotherapy Modeling: Molecular Interaction and Recognition of MHC/peptide/TCR Complexes | Zhou, Ruhong | In this talk, I will talk about our recent collaborative work which solves one mystery behind this low response rate with molecular modeling and machine learning techniques. | Session 20: New Ways of Seeing with Data Science |
| 240 | Defining Theoretical Limits of Aberration-Corrected Electron Tomography: New Bounds for Resolution, Object Size, and Dose | Hovden, Robert | Here we present a theoretical foundation for aberration-corrected electron tomography by establishing analytic descriptions for resolution, sampling, object size, and dose—with direct analogy to the Crowther criterion. | Session 21: New Ways of Seeing with Electrons |
| 241 | Vibrational spectroscopy in the electron microscope | Krivanek, Ondrej; Dellby, Niklas; Meyer, Chris; Mittelberger, Andreas; Lovejoy, Tracy | Vibrational spectroscopy in the electron microscope | Session 21: New Ways of Seeing with Electrons |
| 242 | Visualizing heterogeneous nucleation with liquid cell transmission electron microscopy | Woehl, Taylor | In this talk, I will discuss development of a liquid cell transmission electron microscopy (LC-TEM) method for quantifying important parameters of heterogeneous nucleation, including supersaturation ratio and interfacial energy, and our efforts to utilize this approach to visualize nanoscale variations in nucleation kinetics at a solid-liquid interface. | Session 21: New Ways of Seeing with Electrons |
| 243 | In Situ Transmission Electron Microscopy Imaging of Nanocrystal Transformations | Zheng, Haimei | In this talk, I will show a few examples about the structural transformations of nanocrystals during growth and self-assembly in solution. | Session 21: New Ways of Seeing with Electrons |
| 244 | The Intersection of Cryo, Laser Ablation, and Nanoscale Electron Imaging for Intact Battery Characterization | Jungjohann, Katherine | Here, we present a method for retaining the internal structure of the coin cell by cryogenic plunge freezing of the entire stack, followed by in-situ, athermal, ultrashort-pulse laser ablation to access the internal components in cross-section, followed by standard characterization using scanning electron microscopy and energy dispersive x-ray spectroscopy. | Session 21: New Ways of Seeing with Electrons |
| 245 | Multi-modal microscopy and spectroscopy of wide band gap semiconductors | Oliver, Rachel | Thus, I will introduce methods that allow different microscopy techniques to be brought to bear on exactly the same nanoscale structure, revealing more about its characteristics than any individual technique could achieve alone. | Session 22: Optical Probes and Imaging of Defects |
| 246 | Far-infrared spectroscopy of shallow thermal donors and dilute impurities in high-purity silicon | Martinez, Vladimir; Tanner, David; Adhikari, Rana; Arai, Koji; Brooks, Aidan; Wipf, Christopher | Using the results of our transmission spectra, we can determine the type of impurities in the sample and their concentration. | Session 22: Optical Probes and Imaging of Defects |
| 247 | Multidimensional Coherent Spectroscopy of Erbium Doped GaAs Quantum Wells | Boutelle, Robert; Autry, Travis; Mirin, Richard; Silverman, Kevin | To better understand the interaction of rare-earth doping, we investigate the effect of dilute erbium doping in GaAs quantum wells. | Session 22: Optical Probes and Imaging of Defects |
| 248 | Deep UV Photoluminescence and Chemical composition Analysis of Residual Impurities in Hexagonal boron nitride | Maharjan, Nikesh; Khan, Neelam; Edgar, James; Janzen, Eli; Nakarmi, Mim | Deep UV Photoluminescence and Chemical composition Analysis of Residual Impurities in Hexagonal boron nitride | Session 22: Optical Probes and Imaging of Defects |
| 249 | Independent determination of carrier densities and analysis of different recombination channels in GaAs PL and EL through Raman scattering of LO phonon – plasmon coupled mode | Zhang, Fan; Zhang, Yong | An ABC model is widely used to describe the carrier recombination, where the contributions of non-radiative, radiative, and Auger recombination are partitioned, respectively, into the three terms in R = An + Bn 2 + Cn 3. | Session 22: Optical Probes and Imaging of Defects |
| 250 | Understanding the Fluorescence Mechanism of Carbon Dots through Single-Molecule Excited-State Imaging | Nguyen, Huy; Srivastava, Indrajit; Lyding, Joseph; Pan, Dipanjan; Gruebele, Martin | We employed scanning tunneling microscopy (STM) and single molecule absorption STM (SMA-STM) to study the fluorescence mechanism in carbon dots (Cdots). | Session 22: Optical Probes and Imaging of Defects |
| 251 | Charge sensing in CMOS devices using reflectometry | Rivard, Joffrey; Godfrin, Clément; Orlov, Alexei; Dupont-Ferrier, Eva | In this talk, we report on optimization of reflectometry setups at low temperature and discuss the use of tunable capacitors for in situ tuning targeting high sensitivity RF-measurement for spin qubit readout. | Session 22: Optical Probes and Imaging of Defects |
| 252 | Infrared Transmission of Ge:Mn Thick Films Prepared by Ion Implantation and Post-Annealing | Obied, Laila; Roorda, Sjoerd; Zhou, Shenqiang; Prucnal, Slawomir; Crandles, David | Infrared Transmission of Ge:Mn Thick Films Prepared by Ion Implantation and Post-Annealing | Session 22: Optical Probes and Imaging of Defects |
| 253 | Photon Statistics as an Analytical Tool in Solid-State Defect Systems | Fishman, Rebecca; Patel, Raj; Hopper, David; Huang, Tzu-Yung; Bassett, Lee | We briefly discuss the history and development of photon correlation spectroscopy as a measurement tool and outline methods for proper acquisition and analysis of photon statistics. | Session 22: Optical Probes and Imaging of Defects |
| 254 | Spatiotemporal Microwave Imaging of Photo-carrier Dynamics in Monolayer Semiconductors | Chu, Zhaodong; Wang, Chun Yuan; Quan, Jiamin; Zhang, Chenhui; Lei, Chao; Han, Ali; Ma, Xuejian; Tang, Hao-Ling; Abeysinghe, Dishan; Staab, Matthew; Zhang, Xixiang; MacDonald, Allan; Tung, vincent; Shih, Chih-Kang; Li, Xiaoqin (Elaine); Lai, Keji | Here, we report the simultaneous spatial and temporal photoconductivity imaging in WS 2 monolayers by laser-illuminated microwave impedance microscopy. | Session 22: Optical Probes and Imaging of Defects |
| 255 | Photodegradation of Si-doped GaAs Nanowire | Pimenta, Ana Clara; Limborço, Henrique; Pérez, Juan Carlos; Taborda, Nestor; Ramos, Sérgio Luís; Matinaga, Franklin | In this work we investigated the photodegradation of a single Si-doped GaAs NW by laser heating in air. | Session 22: Optical Probes and Imaging of Defects |
| 256 | Defect induced photoluminescence in SnO2 nanostructures: Evaluation and Utilization for optical sensing and waveguide application | SAHU, BINAYA; Juine, Rabindranath; Das, Arindam | Defect induced photoluminescence in SnO2 nanostructures: Evaluation and Utilization for optical sensing and waveguide application | Session 22: Optical Probes and Imaging of Defects |
| 257 | Photoluminescence of Monolayer MoS2 under Controlled Environment for Optoelectronic Applications | Birmingham, Blake; Yuan, Jiantan; Filez, Matthias; Fu, Donglong; Hu, Jonathan; Lou, Jun; Scully, Marlan; Weckhuysen, Bert; Zhang, Zhenrong | Our study demonstrates that photoreactions with the gaseous environment on MoS 2 monolayer flakes should be taken into consideration even upon mild photoirradiation as they strongly impact the flakes’ optical properties. | Session 23: Optical Spectroscopic Measurements of 2D Materials |
| 258 | Imaging strain-localized exciton states in nanoscale bubbles in monolayer transition metal dichalcogenides at room temperature | Darlington, Thomas; Carmesin, Christian; Florian, Mathias; Yanev, Emanuil; Ajayi, Demi; Ardelean, Jenny; Ghiotto, Augusto; Krayev, Andrey; Kysar, Jeffrey; Pasupathy, Abhay; Hone, James; Jahnke, Frank; Borys, Nicholas; Schuck, P. James | Here we combine room-temperature nano-optical imaging of excitons in nanobubbles in 1L-WSe 2 with atomistic structural models to elucidate how strain induces the nanoscale confinement potentials that give rise to highly localized exciton states in 2D semiconductors. | Session 23: Optical Spectroscopic Measurements of 2D Materials |
| 259 | Multi-harmonic phonon assisted upconversion in van der Waals heterostructure p-n junction photodidodes | Barati, Fatemeh; Arp, Trevor; Su, Shanshan; Lake, Roger; Gabor, Nathaniel | Here, we report on phonon assisted anti-stokes absorption near the interlayer exciton edge of vdW semiconductor heterostructures composed of 2L-WSe 2and MoSe 2. | Session 23: Optical Spectroscopic Measurements of 2D Materials |
| 260 | Strong-Coupling of Hybrid Quasiparticles in Excitonic-Dielectric Gratings | Abhiraman, Bhaskar; Zhang, Huiqin; Zhang, Qing; Miao, Jinshui; Jo, Kiyoung; Roccasecca, Stefano; Knight, Mark; Davoyan, Artur; Jariwala, Deep | Here, we demonstrate that nanostructured multilayer WS 2 provides an ideal cavity-less and exposed surface platform for exciton-photonics where the WS 2 serves the role of both the cavity and the excitonic medium. | Session 23: Optical Spectroscopic Measurements of 2D Materials |
| 261 | Ultrafast exciton dynamics in WSe2 optical waveguides | Sternbach, Aaron; Latini, Simone; Chae, Sanghoon; Huebener, Hannes; De Giovannini, Umberto; Shao, Yinming; Xiong, Lin; Sun, Zhiyuan; Shi, Norman; Kissin, Peter; Ni, Guangxin; Rhodes, Daniel; Kim, Brian; Yu, Nanfang; Millis, Andrew; Fogler, Michael; Schuck, P. James; Lipson, Michal; Zhu, Xiaoyang; Hone, James; Averitt, Richard; Rubio, Angel; Basov, Dmitri | We investigated dynamics of excitons in a Van der Waals Semiconducting, WSe 2, waveguide. | Session 23: Optical Spectroscopic Measurements of 2D Materials |
| 262 | Twist-angle dependent optical properties of interlayer excitons in MoSe2/WSe2 heterostructures | Choi, Junho; Tran, Kha; Moody, Galan; Singh, Akshay; Quan, Jiamin; Sun, Liuyang; Claassen, Rob; Young, Carter; Taniguchi, Takashi; Watanabe, Kenji; Li, Xiaoqin (Elaine) | We investigate the interlayer excitons in MoSe 2/WSe 2 heterostructures, mechanically stacked with an accurately controlled twist angle and capsulated by hexagonal boron nitride. | Session 23: Optical Spectroscopic Measurements of 2D Materials |
| 263 | Excitonic spectral features of 1L-WSe2 with silicon nitride waveguide coupling | Wu, Yueh-Chun; Samudrala, Sarath; McClung, Andrew; Watanabe, Kenji; Taniguchi, Takashi; Arbabi, Amir; Yan, Jun | In this study, we present excitonic spectral features of 1L-WSe2 coupled to a platform with Silicon nitride (SiNx) waveguides, allowing us to excite and collect signals in different polarizations. | Session 23: Optical Spectroscopic Measurements of 2D Materials |
| 264 | The Nature of Trions and Trion-Polaritons in 2D Materials: Theory and Experiments | Koksal, Okan; Jung, Minwoo; Manolatou, Christina; Shvets, Gennady; Rana, Farhan | In this work we present a many body description of trions and trion-polaritons that is valid over a wide range of electron densities. | Session 23: Optical Spectroscopic Measurements of 2D Materials |
| 265 | Excitonic Lifetime in CVD-Grown, Few-Layer MoTe2 | Schulzetenberg, Aaron; Johns, James | Excitonic Lifetime in CVD-Grown, Few-Layer MoTe2 | Session 23: Optical Spectroscopic Measurements of 2D Materials |
| 266 | Continuous Wave Sum Frequency Generation and Imaging of Monolayer and Heterobilayer 2D Semiconductors | Yao, Kaiyuan; Yanev, Emanuil; Chuang, Hsun jen; Rosenberger, Matthew; Xu, Xinyi; Darlington, Thomas; McCreary, Kathleen; Hanbicki, Aubrey; Jonker, Berend; Zhu, Xiaoyang; Basov, Dmitri; Hone, James; Schuck, P. James | Using sum frequency excitation spectroscopy and imaging, we identify and distinguish one- and two-photon resonances in both monolayers and heterobilayers. | Session 23: Optical Spectroscopic Measurements of 2D Materials |
| 267 | Second harmonic generation spectroscopy of MoS2/WSe2 heterostructure | Kim, Jungcheol; Cheong, Hyeonsik | Second harmonic generation spectroscopy of MoS2/WSe2 heterostructure | Session 23: Optical Spectroscopic Measurements of 2D Materials |
| 268 | Trion valley relaxation dynamics in monolayer WSe2 | Shinokita, Keisuke; Wang, Xiaofan; Miyauchi, Yuhei; Watanabe, Kenji; Taniguchi, Takashi; Konabe, Satoru; Matsuda, Kazunari | Here we report the valley relaxation dynamics of the bright state of positively charged excitons (bright positive trions) in monolayer WSe 2 through polarization- and time-resolved photoluminescence and femtosecond transient reflection measurements. | Session 23: Optical Spectroscopic Measurements of 2D Materials |
| 269 | Pressure-tunable stacking order in few-layer WS2 revealed by second harmonic generation | Wei, Chengrong; Su, Huimin; Zhou, Xuefeng; Wang, Shanmin; Dai, Jun-Feng | The tunability of translation structural symmetry by using a hydrostatic pressure presented in this work provides a platform to explore novel physical properties in new class of 2D materials. | Session 23: Optical Spectroscopic Measurements of 2D Materials |
| 270 | Donor-acceptor-pair transitions in suspended monolayer WS2 | Wang, Yunkun; Luo, Hailan; Zhou, Xingjiang; Huang, Yuan; Gao, Yunan | Here we report observation and characterization of DAP transitions in a suspended monolayer WS 2 using steady-state and time-resolved photoluminescence spectroscopy. | Session 23: Optical Spectroscopic Measurements of 2D Materials |
| 271 | Novel biomedical applications of lasers: dermatology, gynecology, and stomatology | Lukac, Matjaz; Milanic, Matija; Jezersek, Matija | Novel biomedical applications of lasers: dermatology, gynecology, and stomatology | Session 24: Optics in Soft Matter and Medicine |
| 272 | Understanding coronary plaque biomechanical properties with intravascular imaging | Bouma, Brett | We have recently developed a novel approach for real-time modeling that can be used during procedures in the cardiac catheterization laboratory. | Session 24: Optics in Soft Matter and Medicine |
| 273 | Optical properties of silicone rubber tissue phantoms for biomedical optics applications | Milanic, Matija; Novak, Jure; Naglič, Peter; Zelinskyi, Yevhen; Rogelj, Luka; Kumperščak, Borut; Stergar, Jost; Bürmen, Miran | A useful phantom must be well characterized, namely its physical properties must be accurately measured using standard techniques. | Session 24: Optics in Soft Matter and Medicine |
| 274 | Laser induced jets in needle free drug delivery | Pankaj, FNU; Marston, Jeremy | Here, we have investigated the feasibility of laser-induced micro-jets as a needle-free injection technique. | Session 24: Optics in Soft Matter and Medicine |
| 275 | Fourier Transform Laser Speckle Imaging for art conservation | Buijs, Jesse; Van der Gucht, Jasper; Sprakel, Joris | In this article we show how to apply this algorithm and how to measure a diffusion coefficient with it. | Session 24: Optics in Soft Matter and Medicine |
| 276 | Doppler Functional Imaging of Cancer Drug Sensitivity in Living Tumor Biopsies | Li, Zhe; Jalal, Shadia; Turek, John; Nolte, David | We introduce a technique called tissue dynamics spectroscopic imaging (TDSI) to reveal drug response variations within small cubic millimeter biopsy samples. | Session 24: Optics in Soft Matter and Medicine |
| 277 | Probing the interior dynamics of shear thickening colloidal suspensions using confocal line scans | Miller, Joia; Blair, Daniel; Urbach, Jeffrey | Here we use line scans on a confocal microscope to visualize particle flows in a sheared suspension, increasing our temporal resolution by two orders of magnitude. | Session 24: Optics in Soft Matter and Medicine |
| 278 | Nanoscale Optical Imaging of Soft Matter Under Flow | Shakya, Anisha; Park, Seong Jun; King, John | We use this technique to study depletion layer formation and dynamics under Poiseuille flow, which remains an outstanding problem in fluid mechanics. | Session 24: Optics in Soft Matter and Medicine |
| 279 | Analyzing the Flow Drying Colloidal Suspensions Using Optical Coherence Tomography | Li, Lanfang; Huang, Yongyang; Jiang, Zhiyu; Zhou, Chao; Ou-Yang, H Daniel | In this work, we present the visualization and analysis of flow in drying colloidal suspensions composed of colloidal polymer particles in water. | Session 24: Optics in Soft Matter and Medicine |
| 280 | Hyperspectral imaging as a technique to evaluate peritonitis in mouse models | Stergar, Jost; Dolenec, Rok; Lakota, Katja; Brezovec, Neza; Perse, Martina; Kojc, Nika; Tomsic, Matija; Milanic, Matija | We present a classification method for determination of the state of peritonitis using HSI. | Session 24: Optics in Soft Matter and Medicine |
| 281 | Electro-reflectance study of low-voltage turn-on in triplet fusion OLED materials | Engmann, Sebastian; Bittle, Emily; Richter, Lee; Gundlach, David | In this presentation we will present electro-reflection (ER) studies that elucidate the built-in potentials in 2 prototypical OLED devices based on Rubrene and DiFTES-ADT as the emitting layer. | Session 25: Organic Electronics: Charge Transport and Theory |
| 282 | The rationale behind the acceptor-donor-acceptor chemical design of non-fullerene acceptors | Markina, Anastasia; Laquai, Frederic; Andrienko, Denis | We explain why excitons dissociation into charge-transfer (CT) states, and the subsequent CT state splitting into charge-separated (CS) states, are efficient in NFAs-based solar cells. | Session 25: Organic Electronics: Charge Transport and Theory |
| 283 | Engineering Diffusion of Charge-Transfer States at Organic Semiconductor Heterojunctions | Concannon, Nolan; Zhang, Tao; Holmes, Russell | In this work, we examine CT state diffusion in donor-acceptor mixtures via photoluminescence quenching methods. | Session 25: Organic Electronics: Charge Transport and Theory |
| 284 | First-Principles Theory for Understanding Excitons in Stacked Organic Assemblies | Sharifzadeh, Sahar | Here, we utilize first-principles theory to investigate the optoelectronic and vibrational properties of stacks of functionalized PTCDI DNA base surrogates as a model system to study inter- and intra-molecular interactions. | Session 25: Organic Electronics: Charge Transport and Theory |
| 285 | Quantum Yield Enhancement of BDMO-PPV During Photo-Degradation | Deutsch, Matthew; Park, Heungman | Using photoluminescence spectroscopy, infrared spectroscopy, and light scattering measurements we intend to define the physical and chemical processes behind the photo-degradation of BDMO-PPV. | Session 25: Organic Electronics: Charge Transport and Theory |
| 286 | Photospintronics- Light-controlled spin transport in hybrid chiral oligopeptide-nanoparticle structures | Roy, Rupshali | Photospintronics- Light-controlled spin transport in hybrid chiral oligopeptide-nanoparticle structures | Session 25: Organic Electronics: Charge Transport and Theory |
| 287 | Morphology-Dependent Triplet Exciton Diffusion in Vapor Deposited Pentacene Thin Films | Shi, Kaicheng; Curtin, Ian; Healy, Andrew; Zhang, Tao; Blank, David; Holmes, Russell | Morphology-Dependent Triplet Exciton Diffusion in Vapor Deposited Pentacene Thin Films | Session 25: Organic Electronics: Charge Transport and Theory |
| 288 | Polaronic effects and charge transport in donor-acceptor semiconducting polymers | Wang, Xiao; Register, Leonard; Dodabalapur, Ananth | We invoke the statistical distribution of carrier free paths and consider the carriers with small free paths as effectively localized due to strong scattering. | Session 25: Organic Electronics: Charge Transport and Theory |
| 289 | Switching dynamics in Croconic Acid thin film | Jiang, Xuanyuan; Buragohain, Pratyush; Poddar, Shashi; Lu, Haidong; Gruverman, Alexei; Xu, Xiaoshan | And the KAI domain growth model is used to fit with this switching dynamic behavior. | Session 25: Organic Electronics: Charge Transport and Theory |
| 290 | Self-assembled monolayer formation of linear molecules onto a FCC(111) surface | Cisternas, Eduardo; Dos Santos, Gonzalo; Flores, Marcos; Vogel, Eugenio; Ramirez-Pastor, Antonio Jose | By performing computational calculations based on the density functional theory, we have obtained interaction energies for different configurations of two adsorbed molecules over a Au(111) surface. | Session 25: Organic Electronics: Charge Transport and Theory |
| 291 | Controlling energy levels and Fermi level en route to fully tailored energetics in organic semiconductors | Warren, Ross; Privitera, Alberto; Kaienburg, Pascal; Lauritzen, Andreas; Thimm, Oliver; Nelson, Jenny; Riede, Moritz | Here, we combine two approaches from band engineering and molecular doping to demonstrate controlled shifts in ionisation potential and Fermi level of an organic thin film. | Session 25: Organic Electronics: Charge Transport and Theory |
| 292 | Advances in Non-Fullerene Organic Photovoltaics | Jenekhe, Samson | In this talk I will discuss our work in both of the main classes of OPV devices: (i) all-polymer solar cells (all-PSCs) composed of both donor and acceptor polymers; and (ii) blends of a small-molecule non-fullerene acceptor (NFA) with a donor polymer. | Session 26: Organic Electronics: Microstructure and Mechanical Property |
| 293 | Revealing the Microstructure of the Active Layer of Ternary Organic Solar Cells using Energy-Filtered TEM | Ayhan, Ismail Alperen; Gomez, Enrique | Here, we demonstrate high-efficiency devices by combining the organic semiconductors with complementary light absorption, using PTB7-Th as donor, and IDIC, COi8DFIC, Eh-IDTBR, and O-IDTBR as acceptors. | Session 26: Organic Electronics: Microstructure and Mechanical Property |
| 294 | Solution Processed Organic and Inorganic Transistors – Application in Inverter Circuits | Barron, John; Pickett, Alec; Glaser, James; Guha, Suchismita | Solution Processed Organic and Inorganic Transistors – Application in Inverter Circuits | Session 26: Organic Electronics: Microstructure and Mechanical Property |
| 295 | Electric field-induced second harmonic generation imaging of organic thin-film devices | BHATTACHARYA, PAYAL; Ostroverkhova, Oksana; Yu, Ping; Guha, Suchismita | Electric field-induced second harmonic generation imaging of organic thin-film devices | Session 26: Organic Electronics: Microstructure and Mechanical Property |
| 296 | Structure of vapor-deposited glasses within a few nanometers of organic-organic interfaces is bulk-like | Fiori, Marie; Bagchi, Kushal; Toney, Michael; Ediger, Mark | In this work, we prepare PVD films made of 60 alternating 10 nm layers of organic semiconductors, DSA-Ph and Alq3, creating 60 interfaces. | Session 26: Organic Electronics: Microstructure and Mechanical Property |
| 297 | Polymer light-emitting diodes with an emitting layer based on a nano-confined semiconducting polymer blend | Ribeiro, Anielen; Landfester, Katharina; Blom, Paul; Michels, Jasper | Polymer light-emitting diodes with an emitting layer based on a nano-confined semiconducting polymer blend | Session 26: Organic Electronics: Microstructure and Mechanical Property |
| 298 | Sub-Turn-on Exciton Quenching Modulated by Spontaneous Orientation Polarization in Organic Light-Emitting Devices | Bangsund, John; Van Sambeek, Jack; Holmes, Russell | Here, we show that electron transport layers exhibiting SOP induce substantial exciton quenching prior to device turn-on, reducing the peak external quantum efficiency by ~20% relative to layers without SOP. | Session 26: Organic Electronics: Microstructure and Mechanical Property |
| 299 | Influence of Acceptor Type and Polymer Molecular Weight on the Mechanical and Photovoltaic Properties of Polymer Solar Cells | Kim, Bumjoon | Here, we present a comparative study of the mechanical properties of small-molecule acceptor (SMA)-based, polymer acceptors (PA)-based, and fullerene-based PSCs. | Session 26: Organic Electronics: Microstructure and Mechanical Property |
| 300 | Mechanically-durable high performance OPVs using semi-interpenetrating networks | Hu, Zhiqi; Sun, Changxu; Jackson, Joshua; Terlier, Tanguy; Verduzco, Rafael | This work describes a general route to high performance flexible devices and detailed design parameters that influence performance. | Session 26: Organic Electronics: Microstructure and Mechanical Property |
| 301 | Mechanically-Robust and High-Performance Thin Film Transistors with Regioregular-block-Regiorandom Poly(3-hexylthiophene) Copolymers | Park, Hyeonjung; Ma, Boo Soo; Kim, Jin-Seong; Kim, Youngkwon; Kim, Hyeong Jun; Kim, Donguk; Yun, Hongseok; Han, Junghun; Kim, Felix Sunjoo; Kim, Taek-Soo; Kim, Bumjoon | We develop mechanically-robust and high-performance organic thin film transistors (OTFTs) based on poly(3-hexylthiophene) (P3HT) regioblock copolymers ( block-P3HTs). | Session 26: Organic Electronics: Microstructure and Mechanical Property |
| 302 | Multiscale-ordered, highly stretchable polymer semiconductor through nanoconfinement | Xu, Jie | To substantially improve their charge carrier mobility under strain, we reported a novel and genetic approach that combines advanced solution processing with nanoconfinement effect to achieve multi-scale ordering and high stretchability in conjugated polymers. | Session 26: Organic Electronics: Microstructure and Mechanical Property |
| 303 | Following a Theoretical Roadmap to Low Nucleation Barriers for CO2 Nucleation in Polyol | Kornfield, Julia | In relation to polyurethane foam, we seek high nucleation density guided by predictions from density functional theory (DFT) with the string method for the activation barriers. | Session 27: Physics of Foams: From Beer to Windmill Blades and Everything in Between |
| 304 | Polymer Foams for Building Insulation (STYROFOAM and beyond) | Costeux, Stephane | Polymer Foams for Building Insulation (STYROFOAM and beyond) | Session 27: Physics of Foams: From Beer to Windmill Blades and Everything in Between |
| 305 | Polyurethane Application Innovation: Translating Chemistry to Materials to Solve Real-World Problems | Koonce, William | Polyurethane Application Innovation: Translating Chemistry to Materials to Solve Real-World Problems | Session 27: Physics of Foams: From Beer to Windmill Blades and Everything in Between |
| 306 | Modeling Nucleation in Polymeric Foams using Self-Consistent Field Theory | Thompson, Russell | Modeling Nucleation in Polymeric Foams using Self-Consistent Field Theory | Session 27: Physics of Foams: From Beer to Windmill Blades and Everything in Between |
| 307 | Fluid dynamics of bubbly drinks | Zenit, Roberto | Discussion and analysis of the processes of bubble formation, ascention, accumulation and bursting are presented. | Session 27: Physics of Foams: From Beer to Windmill Blades and Everything in Between |
| 308 | Bubble Nucleation in Polymer-CO2 Mixtures | Wang, Zhen-Gang | We present an incipient-phase analysis which allows identification of phases that can form from the metastable CO 2-supersaturated parent phase. | Session 28: Physics of Foams: Fundamentals and Applications |
| 309 | Equilibrium coexistence between polyol, CO2, and a physical blowing agent at elevated pressures | Chao, Huikuan; Ylitalo, Andrew; Kornfield, Julie; Ginzburg, Valeriy; Zhou, Weijun; Fitzgibbons, Thomas; Wang, Zhen-Gang | As a fist step to approach the issue, we develop a liquid-state theory of a ternary foaming system (PBA, CO 2 and polyols) and study the phase behaviors of the system at manufacture-relevant conditions. | Session 28: Physics of Foams: Fundamentals and Applications |
| 310 | Microfluidic Approach to Study Bubble Nucleation in Polymeric Foams for the Development of DFT-based Models | Ylitalo, Andrew; Chao, Huikuan; Fitzgibbons, Thomas; Ginzburg, Valeriy; Zhou, Weijun; Wang, Zhen-Gang; Kornfield, Julie | Single-component classical nucleation theory predicts erroneous nucleation barriers, particularly when applied to foaming of multicomponent liquids used to produce lightweight, functional materials. | Session 28: Physics of Foams: Fundamentals and Applications |
| 311 | An Off-Lattice Sanchez-Lacombe Related Equation of State Extensible to Polymeric Foams | Alam, Hassan; Park, Chul B.; Thompson, Russell | Thus, we proposed a new criterion for glass transition temperature calculations. | Session 28: Physics of Foams: Fundamentals and Applications |
| 312 | Experimental Test of the Border-Crossing Model of Diffusive Coarsening in Wet Foams | Durian, Douglas; Chieco, Anthony | Here we extend this theory and describe on-going experiments to test it by measurement of area changes for six-sided bubbles, which would neither grow nor shrink if perfectly dry. | Session 28: Physics of Foams: Fundamentals and Applications |
| 313 | Experimentally Testing a Generalized Coarsening Model for Quasi-Two-Dimensional Wet Foams | Chieco, Anthony; Durian, Douglas | Accounting for the size of the Plateau borders and gas that diffuses through both the Plateau Borders and thin films separating two bubbles, we modify von Neumann’s law to a no-fit general coarsening equation where bubble size and shape now matter. | Session 28: Physics of Foams: Fundamentals and Applications |
| 314 | Intelligent Design of Cellular Solids for Impact Mitigation | Reyes-Martinez, Marcos; Shen, Meng; Chan, Edwin; Soles, Christopher; Pashine, Nidhi; Nagel, Sidney; Jaeger, Heinrich; De Pablo, Juan | Here, we demonstrate bond pruning and global node position optimization as effective routes for designing cellular materials with isotropic auxetic properties, and for independently controlling μ and K. | Session 28: Physics of Foams: Fundamentals and Applications |
| 315 | Heat transfer of low-density styrenic foam | Wong, Anson; Rickard, Mark | Heat transfer of low-density styrenic foam | Session 28: Physics of Foams: Fundamentals and Applications |
| 316 | Human Comfort and the Physics of Foams | Aou, Kaoru; Xu, Wenbo; Dietsche, Laura; Brune, Douglas; Thota, Manoj | Thermal comfort simulation was conducted using the ASHRAE Human Comfort model, coupled with a multiphysics model taking into account natural convection of air, thermal conduction and mass (water vapor) diffusion phenomena. | Session 28: Physics of Foams: Fundamentals and Applications |
| 317 | Foam formation in microfluidic EDGE devices: tuning the bubble size | Deng, Boxin; Schroën, Karin; De Ruiter, Jolet | We use so-called partitioned-EDGE microfluidic chips with which we can produce bubbles in an array of rectangular pores. | Session 28: Physics of Foams: Fundamentals and Applications |
| 318 | Phoamtonic designs yield sizeable 3D photonic band gaps | Klatt, Michael Andreas; Steinhardt, Paul; Torquato, Salvatore | We show that it is possible to construct foam-based heterostructures with complete photonic band gaps. | Session 28: Physics of Foams: Fundamentals and Applications |
| 319 | The Physics of System Integration: Merging Radiotherapy and Magnetic Resonance Imaging to Improve Patient Outcomes | Thompson, Michael | In this talk the advantages of integrating low field MRI with radiotherapy will be briefly reviewed. | Session 29: Physics of Medical Devices |
| 320 | Proteomic Assay to Predict Health, Wellness, and Disease | Cleveland, Jason | I will briefly review the physics underlying the current assay and highlight a few of the health measurements. | Session 29: Physics of Medical Devices |
| 321 | Light-induced pathogenic bacterial deactivation by using graphene quantum dot and methylene blue | Belekov, Ermek; Cooper, Lauren; Kholikov, Khomidkhodza; Er, Ali | Light-induced pathogenic bacterial deactivation by using graphene quantum dot and methylene blue | Session 29: Physics of Medical Devices |
| 322 | Analysis of experimental acoustic waves induced by high energy pulsed X-ray beams | Forghani, Farnoush; Mahl, Adam; Jones, Bernard; Borden, Mark; Miften, Moyed; Thomas, David | Here, we present current experimental results of the X-ray acoustic signals obtained by two types of X-ray sources; megavoltage energy with a long pulse width (4 us) and kilovoltage energy with short pulse width (10 ns). | Session 29: Physics of Medical Devices |
| 323 | Optimizing coded aperture imaging techniques to allow for online tracking of fiducial markers using high energy scattered radiation from clinical treatment beam. | Mahl, Adam; Miller, Brian; Miften, Moyed; Jones, Bernard | This project aims to optimize techniques for online tracking by detecting the scattered radiation from clinical treatment beams through a coded aperture (CA). | Session 29: Physics of Medical Devices |
| 324 | Imaging Surgical Devices with Reduced Metal Artifact | Wu, Pengwei; Sheth, Niral; Sisniega, Alejandro; Uneri, Ali; Han, Runze; Vijayan, Rohan; Vagdargi, Prasad; Kreher, Bjoern; Kunze, Holger; Kleinszig, Gerhard; Vogt, Sebastian; Siewerdsen, Jeffrey | We present a method to predict patient and device specific orbits of C-arm cone-beam CT system that avoid metal artifacts by acquiring projection data with minimal influence from metal-related polyenergetic bias (spectral shift). | Session 29: Physics of Medical Devices |
| 325 | Personalized radiation attenuating materials for mucosal protection | Byrne, James; Pursley, Jennifer; Remillard, Kyla; Edgington, Samantha; Schoenfeld, Jonathan; Traverso, Giovanni | In this study, we measured the radiation attenuating properties of different materials. | Session 29: Physics of Medical Devices |
| 326 | Fast, Small Volume Blood Diagnostics using Homogeneous Thin Solid Films of µL-sized Drops on Super-Hydrophilic Coatings – Impact of Film Properties on Test Accuracy | Suresh, Nikhil; Khanna, Shaurya; Chow, Amber; Gurijala, Aashi; Sahal, Mohammed; Ram, Sukesh; Narayan, Saaketh; Herbots, Nicole; Balasooriya, Thilina; Peng, Wesley; Culbertson, Eric; Culbertson, Robert | Calibration using Balanced Saline Solution allows for conversion of atomic % into concentration in mg/dL, the main metric in blood diagnostics. | Session 29: Physics of Medical Devices |
| 327 | Selection of High Quality Sperm with Lower DNA Fragmentation | Ataei, Afrouz; W.C. Lau, Andy; Leventouri, Theodora; Asghar, Waseem | In this work, we construct a microfluidic device based on the observation that motile sperm can swim against the flow within a specific range of flow rates. | Session 29: Physics of Medical Devices |
| 328 | Characterization of neuroblastoma SH-SY5Y cell lines using dielectrophoresis | Rikhtehgaran, Samaneh; Wille, Luc; Leventouri, Theodora; Wei, Jianning; Du, E | We constructed a microdevice that consists of two parts: the interdigitated ITO electrodes to generate AC electric field and a Polydimethylsiloxane (PDMS) with two wells to inject the cells and the media. | Session 29: Physics of Medical Devices |
| 329 | Optimize The Blood Flow In Blood Vessels By Magnet Field To Cure Hypertension | Tao, Rongjia | Here we report our discovery: the blood flow in blood vessels can be optimized by application of a strong magnetic field along its flow direction. | Session 29: Physics of Medical Devices |
| 330 | Spatiotemporal mapping of photocurrent in 2D materials using diamond quantum sensors | Zhou, Brian | We reveal that photocurrent in monolayer MoS 2 circulates as a micron-scale vortex under an external magnetic field due to a strong photo-Nernst effect. | Session 30: Quantum Spins in Semiconductors |
| 331 | Optically pumped spin polarization as a probe of many-body thermalization | Pagliero, Daniela; Zangara, Pablo; Henshaw, Jacob; Ajoy, Ashok; Acosta, Rodolfo; Reimer, Jeffrey; Pines, Alexander; Meriles, Carlos | Here we investigate the spin diffusion dynamics of 13C in diamond, which we dynamically polarize at room temperature via optical spin pumping of engineered color centers. | Session 30: Quantum Spins in Semiconductors |
| 332 | Nanoscale structure of the orbital magnetic moment of a single dopant spin in a semiconductor | Rodrigues da Cruz, Adonai; Flatté, Michael | In this project we developed a formalism employing Green’s functions obtained by the Koster-Slater technique [2] with a sp 3d 5s * empirical tight-binding Hamiltonian [3] to describe the host material. | Session 30: Quantum Spins in Semiconductors |
| 333 | Pulsed Electrically Detected Magnetic Resonance (pEDMR) at Low Magnetic Fields using an Arbitrary Wave Form Generator (AWG) | Tennahewa, Taniya; Malissa, Hans; Popli, Henna; Atwood, Sabastian; Hosseinzadeh, Sanaz; Lupton, John; Boehme, Christoph | We use pulsed electrically detected magnetic resonance (pEDMR) in order to observe the coherent propagation of electron spins under strong drive magnetic resonance conditions in organic materials, where excitation frequencies (~100 MHz) and Zeeman fields (~3 mT) are low. | Session 30: Quantum Spins in Semiconductors |
| 334 | Detection of electron spin resonance in the strong, non-linear drive regime using spin-dependent charge carrier recombination currents and an amplitude-modulated continuous wave electrically detected magnetic resonance scheme | Atwood, Sabastian; Nahlawi, Adnan; Hosseinzadeh, Sanaz; Tennahewa, Taniya; Popli, Henna; Malissa, Hans; Lupton, John; Boehme, Christoph | Here, we demonstrate the use of amplitude-modulated lock-in detection for the isolation of these two electric current signatures, taking advantage of their different dynamic natures. | Session 30: Quantum Spins in Semiconductors |
| 335 | Probing spin-dependent electronic transitions in a conjugated polymer using electrically detected magnetic resonance (EDMR) under hole injection with MoO3 electrodes | Hosseinzadeh, Sanaz; Malissa, Hans; Nahlawi, Adnan; Boehme, Christoph | As spin-dependent electronic transitions rates change under magnetic resonant excitation, spin-dependent recombination can be studied using a method called electrically detected magnetic resonance spectroscopy (EDMR) [1-2]. | Session 30: Quantum Spins in Semiconductors |
| 336 | Manipulation of Dynamic Nuclear Polarization in Gallium Arsenide under periodic optical electron spin pumping | Dominguez, Michael; Iafrate, Joseph; Sih, Vanessa | We demonstrate that the coupled electron-nuclear spin systems can be manipulated by varying the excitation energy and sweeping an external magnetic field. | Session 30: Quantum Spins in Semiconductors |
| 337 | The impact of dynamic nuclear polarization on non-local spin valve and inverse spin Hall Hanle measurements in n-GaAs | Jiang, Zhen; Patel, Sahil; Crowell, Paul; Palmstrom, Chris | We have developed a pulsed-current technique which utilizes the vast difference between electron and nuclear spin relaxation time scales (about ns and s respectively) to eliminate the impact of the steady-state hyperfine field, and the obtained Hanle curves then match expectations based on simple drift-diffusion models. | Session 30: Quantum Spins in Semiconductors |
| 338 | Magnetic properties of a single micrometer-sized YIG/FGT multilayer heterostructure revealed by ferromagnetic resonance | Arkook, Bassim; Alghamdi, Mohammed; Ortiz, Victor; Shi, Jing; Barsukov, Igor | The results shed light on spin phenomena at YIG/FGT interfaces and present an experimental approach for studies of micro-scale magnetic insulator/2D heterostructures. | Session 30: Quantum Spins in Semiconductors |
| 339 | Dynamics of Spin Waves in 1D and 2D Magnonic Crystals of V[TCNE]x~2 with YIG or Cobalt | Hu, Kwangyul; Flatté, Michael | Here, we calculate and present the magnonic dispersions and linewidths of quasi one-dimensional and two-dimensional magnonic crystals consisting of V[TCNE] x~2 with YIG or cobalt. | Session 30: Quantum Spins in Semiconductors |
| 340 | Impact of hidden structural order on low temperature magnetic resonance in V[TCNE]x | Yusuf, Huma; Franson, Andrew; Kurfman, Seth; Johnston-Halperin, Ezekiel | Here we report the observation of anomalous temperature dependent anisotropy in thin films of V[TCNE]x at temperatures down to 5 K. | Session 30: Quantum Spins in Semiconductors |
| 341 | Life as a PhD/MBA in the Optics and Photonics Industry | Sikorski, Yuri | Life as a PhD/MBA in the Optics and Photonics Industry | Session 31: Seeing Your Career In a New Light |
| 342 | When your protagonist is a Hamiltonian: A career in physics writing and editing | Thomas, Jessica | This talk is aimed at anyone who wants to learn more about a career in science writing and editing. | Session 31: Seeing Your Career In a New Light |
| 343 | From the Study of Physics to Entrepreneurship | Hughes, Jeramy | Sit back as I take you on a journey that starts with working in the labs of Nobel Laureates and continues with founding FieldLine, a company that is creating world changing medical technologies. | Session 31: Seeing Your Career In a New Light |
| 344 | Navigating a National Lab Career | Sarrao, John | Navigating a National Lab Career | Session 31: Seeing Your Career In a New Light |
| 345 | Trailblazing an Industrial Physics Career: Three Case Studies on Getting Hired Outside Your Subfield | Thompson, Matthew | In this talk, I will recount how I switched subfields three times since leaving graduate school along with the lessons I learned about succeeding in the job market along the way. | Session 31: Seeing Your Career In a New Light |
| 346 | Doing More with Less – Advanced Sensing enabling uROV, a Next Generation Inspection, Maintenance, and Repair Platform for Subsea Assets | Speck, Andrew | This talk will present the novel sensor architecture embedded on the uROV platform to enable this vision. | Session 32: Seeing the Energy Future |
| 347 | Perspectives on the Future of Energy Production | Koningstein, Ross | Perspectives on the Future of Energy Production | Session 32: Seeing the Energy Future |
| 348 | Accelerating Commercialization of Energy Efficient SiC Power Electronics | Veliadis, Victor | Accelerating Commercialization of Energy Efficient SiC Power Electronics | Session 32: Seeing the Energy Future |
| 349 | Visualizing the Future of Energy Storage | Gyuk, Imre | Visualizing the Future of Energy Storage | Session 32: Seeing the Energy Future |
| 350 | Extracting spin-orbit coupling strength using realistic device simulations | Nijholt, Bas; Winkler, Georg; Vayrynen, Jukka; Wang, Guanzhong; De Lange, Gijs; Binci, Luca; Bordin, Alberto; Lutchyn, Roman | We do realistic device simulations of semiconductor nanowires and calculate the weak antilocalization correction. | Session 33: Spin Phenomena in Nonmagnetic 2D Materials |
| 351 | Far out-of-equilibrium spin populations trigger giant spin injection into atomically thin MoS2 | Chia, Ee Min | In Co/MoS 2, by making use of the strongly out-of-equilibrium character of the injected spins, we demonstrate a highly-efficient spin injection from a ferromagnet (Co) into a semiconductor (MoS 2), thus overcoming the crippling problem of impedance mismatch. | Session 33: Spin Phenomena in Nonmagnetic 2D Materials |
| 352 | Introducing CVD WS2 in Magnetic Tunnel Junctions | Zatko, Victor; Galbiati, Marta; Dubois, Simon; Och, Mauro; Mattevi, Cecilia; Brus, Pierre; Bezencenet, Odile; Martin, Marie-Blandine; Servet, Bernard; Charlier, Jean-Christophe; Godel, Florian; Petroff, Frédéric; Fert, Albert; Dlubak, Bruno; Seneor, Pierre | Here, we will present results on the scarcely studied WS 2 2D semiconductor for spintronics. | Session 33: Spin Phenomena in Nonmagnetic 2D Materials |
| 353 | Defect induced magnetism in monolayer semiconducting PtSe2 | Avsar, Ahmet; Cheon, Cheol-Yeon; Pizzochero, Michele; Ciarrocchi, Alberto; Yazyev, Oleg; Kis, Andras | Here, we will present our magneto-transport measurements together with first-principles calculations which clearly demonstrate that Pt vacancy defect yields an antiferro- (ferro-)magnetic ordering in mono (bi-)layer PtSe 2. | Session 33: Spin Phenomena in Nonmagnetic 2D Materials |
| 354 | Weak anti-localization in undoped Ge/GeSn heterostructures | Li, Jiun-Yun; Tai, Chia-Tse; Lin, Cheng-Yu; Liu, Chia-You; Wang, Tz-Ming; Harris, Charles; Lu, Tzu-Ming | In this work, we demonstrate weak anti-localization (WAL) in undoped Ge/GeSn heterostructures. | Session 33: Spin Phenomena in Nonmagnetic 2D Materials |
| 355 | Magnetic order and anisotropy at 3d ferromagnet/2D material heterojunctions | Wei, Der-Hsin; Lu, Chun-I; Huang, Chih-Heng; Lan, YannWen; Kuo, Chien-Chen; Chuang, Tzu-Hung | I will present the experimental data followed by a brief discussion. | Session 33: Spin Phenomena in Nonmagnetic 2D Materials |
| 356 | Spin-to-charge interconversion in van der Waals heterostructures | Safeer, CK | Using a similar approach, we observed large multidirectional SCC in Weyl semimetal MoTe 2. | Session 33: Spin Phenomena in Nonmagnetic 2D Materials |
| 357 | Two-dimensional spin-valley locking spin valve | Tao, Lingling; Tsymbal, Evgeny | Here, we propose exploiting the spin-valley locking in 2D materials with a large spin-orbit coupling and electric field reversible valley spin polarization, such as germanene, stanene, a 1T′ transition metal dichalcogenide (TMDC) monolayer, and a 2H-TMDC bilayer, to realize a valley spin valve (VSV). | Session 33: Spin Phenomena in Nonmagnetic 2D Materials |
| 358 | Group-IV tellurides as a route towards all-in-one spin transistors | Slawinska, Jagoda; Cerasoli, Frank; Gopal, Priya; Curtarolo, Stefano; Buongiorno Nardelli, Marco | We propose this mechanism as an operation principle of an all-in-one spin transistor, in which spin injection/detection can be accomplished via spin Hall effects. | Session 33: Spin Phenomena in Nonmagnetic 2D Materials |
| 359 | Atomically-resolved theory of the magnitude of the bulk Rashba effect | Mera, Carlos; Ogoshi, Elton; Fazzio, Adalberto; Dalpian, Gustavo M.; Zunger, Alex | We find an intrinsic separation between strong Rashba effect associated with anti-crossing bands, and weak Rashba effect associated with no anti-crossing bands. | Session 33: Spin Phenomena in Nonmagnetic 2D Materials |
| 360 | All-electrical creation and control of giant spin-galvanic effect in 1T′-MoTe2/graphene heterostructures at room temperature | Hoque, Md Anamul; Khokhriakov, Dmitrii; Karpiak, Bogdan; Dash, Saroj | Here, we exploit a proximity-induced Rashba-Edelstein (REE) effect in vdW heterostructures of Weyl semimetal candidate MoTe 2 and CVD graphene, where an unprecedented gate-controlled switching of spin-galvanic effect emerges due to an efficient spin-to-charge conversion at room temperature [1]. | Session 33: Spin Phenomena in Nonmagnetic 2D Materials |
| 361 | Highly tunable nonlinear Hall effects induced by spin-orbit couplings in strained polar transition-metal dichalcogenides | Zhang, Cheng-Ping; Zhou, Tong; Law, Kam Tuen | In this work, we show that in strained polar transition-metal dichalcogenides(TMDs) with 2H-structures, Berry curvature dipoles created by spin degrees of freedom lead to strong nonlinear Hall effects. | Session 33: Spin Phenomena in Nonmagnetic 2D Materials |
| 362 | Research on the valley-related properties based on multilayer transition metal dichalcogenides | Guan, Hongming; Tang, Ning; Zhang, Xiaoyue; Liu, Xingchen; Ge, Weikun; Shen, Bo | In this report, by utilizing the ionic liquid (IL) covering on top of the multilayer TMDC samples, the spatial-inversion symmetry is broken by the out-of-plane electric field induced by IL. | Session 33: Spin Phenomena in Nonmagnetic 2D Materials |
| 363 | The Electronic Properties of Quasi-One-Dimensional TiS3 and ZrS3 | Gilbert, Simeon; Yost, Andrew; Li, Mingxing; Yi, Hemian; Lipatov, Alexey; Komesu, Takashi; Avila, José; Sinitskii, Alexander; Wang, Jian; Asensio, Maria; Dowben, Peter | Here we present our work on the electronic properties of two TMTs, TiS 3 and ZrS 3, including the experimental band structure from nanospot angle resolved photoemission spectroscopy (nanoARPES). | Session 33: Spin Phenomena in Nonmagnetic 2D Materials |
| 364 | Origin of Magnetism in undoped and Ta doped anatase TiO2 free-standing films | Devi, Sonu; Venkatesan, Thirumalai | We have found a strong linear correlation between the observed magnetism and Ta-doping, in addition to an intrinsic contribution. | Session 33: Spin Phenomena in Nonmagnetic 2D Materials |
| 365 | Efficient intrinsic spin-to-charge current conversion in an all-epitaxial single-crystal perovskite-oxide heterostructure of La0.67Sr0.33MnO3/LaAlO3/SrTiO3 | Ohya, Shinobu; Araki, Daisei; Duc Anh, Le; Kaneta, Shingo; Seki, Munetoshi; Tabata, Hitoshi; Tanaka, Masaaki | Here, we demonstrate efficient intrinsic spin-to-charge current conversion in an all-epitaxial single-crystal heterostructure of La 0.67Sr 0.33MnO 3/LAO/STO, which can suppress spin scattering and give us an ideal environment to investigate intrinsic spin-charge conversion. | Session 33: Spin Phenomena in Nonmagnetic 2D Materials |
| 366 | Magnetic proximity effects in vdW heterostructures of layered materials | Gobbo, Jacob; Muzzio, Ryan; Pinchuk, Igor; Katoch, Jyoti; Singh, Simranjeet | In this talk, we will present our preliminary results in the direction of probing magnetic proximity effects in vdW based heterostructures of 2D-magnetic systems and transition metal dichalcogenides (TMDs). | Session 33: Spin Phenomena in Nonmagnetic 2D Materials |
| 367 | Magnetic proximity in a van der Waals heterostructure of magnetic insulator and graphene. | Karpiak, Bogdan; Cummings, Aron; Zollner, Klaus; Vila, Marc; Khokhriakov, Dmitrii; Hoque, Md Anamul; Dankert, André; Svedlindh, Peter; Fabian, Jaroslav; Roche, Stephan; Dash, Saroj | By investigating the the van der Waals heterostructures of the ferromagnetic insulator Cr 2Ge 2Te 6 and graphene, we observe an out-of-plane proximity-induced ferromagnetic exchange interaction in graphene 1. | Session 33: Spin Phenomena in Nonmagnetic 2D Materials |
| 368 | Novel Exciton Condensation and Lorenz Number in Graphene | Nam, Sang-Boo | We present a novel condensation of boson (exciton = electron + hole) in 2 dimension at the temperature Tc = (6/π 2 ) ½ T F (fermi temperature). | Session 33: Spin Phenomena in Nonmagnetic 2D Materials |
| 369 | Giant spin-layer locking in novel two-dimensional X2Bi2 (X=Si, Ge, or Sn) | Lee, Seungjun; Kwon, Young-Kyun | Here, we propose novel two-dimensional materials X 2Bi 2 (X=Si, Ge, or Sn), which exhibit spin-layer locking with giant Rashba parameter value (α_R≤12.3 eV nm). | Session 33: Spin Phenomena in Nonmagnetic 2D Materials |
| 370 | Edgetronic and spintronic applications of carbon phosphide nanoribbon | cao, liemao; Ang, Yee Sin; Wu, Qingyun; Ang, Lay Kee | In this work, we study the electronic and transport properties of CP nanoribbons in α-phase with different edge configurations using first-principle density functional theory simulation. | Session 33: Spin Phenomena in Nonmagnetic 2D Materials |
| 371 | Rashba spin splitting and perpendicular magnetic anisotropy of Gd-adsorbed zigzag graphene nanoribbon modulated by edge states under external electric fields | Qin, Zhenzhen; Qin, Guangzhao; Shao, Bin; Zuo, Xu | Our study introduces a new strategy to manipulate Rashba spin splitting by edge states and provides new insight into the magnetic anisotropy in 1D Rashba system. | Session 33: Spin Phenomena in Nonmagnetic 2D Materials |
| 372 | Observation of Giant Optical Linear Dichroism and Pseudo Critical Slowing Down in van der Waals Zigzag Antiferromagnets | Hwangbo, Kyle; Zhang, Qi; Jiang, Qianni; Xiao, Di; Chu, Jiun-Haw; Xu, Xiaodong | Here, we report an optical study of an atomically thin zigzag antiferromagnet, FePS 3. | Session 33: Spin Phenomena in Nonmagnetic 2D Materials |
| 373 | Ferromagnetism in multilayered graphite nanostructures doped with nitrogen | Manukyan, Aram; Gyulasaryan, Harutyun; Sharoyan, Eduard; Oyala, Paul; Bernal, Oscar; Kocharian, Armen | We found that the temperature dependences of saturation magnetization closely follow the behavior of integrated magnetic resonance intensity. | Session 33: Spin Phenomena in Nonmagnetic 2D Materials |
| 374 | Modulating electronic and magnetic properties of ferromagnetic Hf2MnC2O2 MXenes | Siriwardane, Edirisuriya; Karki, Pragalv; Loh, Yen Lee; Cakir, Deniz | In this work, density functional theory calculations were carried out to evaluate the electronic and magnetic properties of the uniaxial and biaxial strains applied, and surface defects introduced Hf2MnC2O2 ferromagnetic MXene. | Session 33: Spin Phenomena in Nonmagnetic 2D Materials |
| 375 | Raman signatures on a van der Waals antiferromagnet | Cho, Yujin; Ghosh, Subhajit; Zhao, Zhangji; Hu, Chaowei; Kang, Jin; Kargar, Fariborz; Ni, Ni; Balandin, Alexander; Wong, Chee Wei | In this project, we will correlate the optical Raman spectrum on MnBi 2Te 4 with its magnetic transition temperature (~25K) and the in-plane magnetic anisotropy. | Session 33: Spin Phenomena in Nonmagnetic 2D Materials |
| 376 | Detection of Spin Canting Using Magnetic Field Modulated Microwave Spectroscopy. | Hojem, Alex; Wampler, James; Schuller, Ivan | Other work has shown that a magnetic response in a similar microwave spectroscopy technique can be caused by spin canting[2]. | Session 33: Spin Phenomena in Nonmagnetic 2D Materials |
| 377 | Topological Insulator/Magnetic Insulating Oxide: A Platform for Efficient Spin Current Transport | Li, Peng; Zhang, Steven; Riddiford, Lauren; Pillsbury, Timothy; Ding, Jinjun; Kally, James; Grutter, Alexander; Rimal, Gaurab; Bi, Chong; Csaba, Gyorgy; Jiang, J; Ding, Junjia; Zhang, Wei; Tang, Jinke; Wang, Weigang; Heinonen, Olle; Novosad, Valentyn; Hoffmann, Axel; Samarth, Nitin; Suzuki, Yuri; Wu, Mingzhong | Here we discuss experiments that identified bona fide surface state-induced spin-orbit torques in topological insulator/magnetic oxide bilayers. | Session 34: Spin Phenomena in Topological Insulators |
| 378 | Nonlinear Hall effect in topological insulator-ferromagnet heterostructures | Wang, Yang; Wang, Yong; Wang, Tao; Ou, Yu-Sheng; Ji, Yi; Doty, Matthew; Nikolic, Branislav; Law, Stephanie; Xiao, John | Here, we report current-nonlinear Hall effect in Bi 2Se 3/CoFeB heterostructures measured by second harmonic Hall voltage method, which is commonly used to extract SOTs in TI/FM bilayers. | Session 34: Spin Phenomena in Topological Insulators |
| 379 | Nonlinear planar Hall effect | He, Pan; Zhang, Shulei; Zhu, Dapeng; Shi, Shuyuan; Heinonen, Olle; Vignale, Giovanni; Yang, Hyunsoo | We report the discovery of a new type of Hall effect in a TI Bi 2Se 3 film [1]. | Session 34: Spin Phenomena in Topological Insulators |
| 380 | Nonlinear Hall signatures of ferroelectric switching in atomically thin WTe2 | Zhou, Benjamin T.; Zhang, Cheng-Ping; Gao, Xuejian; Kang, Kaifei; Mak, Kin Fai; Law, Kam Tuen | In this work, we demonstrate that the direction and magnitude of nonlinear Hall currents can be highly sensitive to the ferroelectric polarization in WTe 2. | Session 34: Spin Phenomena in Topological Insulators |
| 381 | Magnetization control of ferromagnetic materials based on topological insulator Sb2Te3 sputtered thin films | Ferreira Teixeira, Sofia; Vanstone, Alexander; Pires, Ana L.; Branford, Will; Araújo, João; Cohen, Lesley; Pereira, André | In this paper, the structural and electrical properties of a uniform nanocrystalline Sb 2Te 3 thin film fabricated by ion beam sputtering will be reported. | Session 34: Spin Phenomena in Topological Insulators |
| 382 | Persistence of spin memory in the insulating state of the crystalline phase-change material SnSb2Te4 revealed by magnetotransport measurements | Breznay, Nicholas; Reindl, Johannes; Volker, Hanno; Wuttig, Matthias | We find an unexpected spin sensitive hopping conductivity in the phase change material SnSb 2Te 4 that can be tuned with disorder. | Session 34: Spin Phenomena in Topological Insulators |
| 383 | Observation of magnetoresistance effects in a heterostructure of Bi2Se3 and a ferromanget with perpendicular magnetic anisotropy | Oh, Junseok; Humbert, Vincent; Sklenar, Joseph; Basa, Bora; Gilbert, Matthew; Mason, Nadya | We report magnetoresistance (MR) signals in a heterostructure of 3D TI Bi 2Se 3 and Co/Pt multilayer with perpendicular magnetic anisotropy. | Session 34: Spin Phenomena in Topological Insulators |
| 384 | Bi-linear magnetoresistance in surface states of topological insulator: the role of Rashba-Edelstein effect and relaxation processes | Dyrdal, Anna; Barnas, Jozef; Fert, Albert | We will present our recent study on BMR of surface electronic states in TIs and in 2D Rashba gas [2]. | Session 34: Spin Phenomena in Topological Insulators |
| 385 | Nonreciprocal second harmonic generation in CuB2O4 | Toyoda, Shingo; Fiebig, Manfred; Arima, Taka-hisa; Tokura, Yoshinori; Ogawa, Naoki | In this study, we have investigated nonreciprocity of second harmonic generation. | Session 34: Spin Phenomena in Topological Insulators |
| 386 | Magnetic torque of holmium antimonide topological semimetal | Poudel, Narayan; Hosen, M. Mofazzel; Kaczorowski, Dariusz; Neupane, Madhab; Gofryk, Krzysztof | In order to account for this issue, we have initiated detailed studies of magnetic torque of HoSb along the three crystallographic directions, and in the antiferromagnetic and paramagnetic phases. | Session 34: Spin Phenomena in Topological Insulators |
| 387 | Large Spin-to-Charge Conversion Induced by Hybrid Rashba- and Surface-State in Topological Insulator Heterostructures | Sun, Rui; Yang, Shijia; Xu, Yang; Vetter, Eric; Sun, Dali; na, li; Su, Lei; Li, Yan; Li, Yang; Gong, Zizhao; Xie, Zongkai; Gul, Qeemat; He, Wei; Zhang, Xiangqun; Cheng, Zhaohua | We found that λ IEE alters as a function of bismuth interlayer thickness, suggesting a new degree of freedom to manipulate λ IEE by engineering the interplay of Rashba and Dirac surface states. | Session 34: Spin Phenomena in Topological Insulators |
| 388 | Band structure probe of near Surface InAs Quantum Wells | Magill, Brenden; Khodaparast, Giti; Thapa, Sunil; Stanton, Christopher; Yuan, Joseph; Hatefipour, Mehdi; Mayer, William; Dartiailh, Matthieu; Sardashti, Kasra; Wickramasinghe, Kaushini; Shabani, Javad; Matsuda, Y. H.; Yang, Zhuo; Kohama, Yoshimitsu | In this talk, we present a combined experimental and theoretical approach to study the band structure of these QWs. | Session 35: Spins in Non-magnetic Semiconductors |
| 389 | Weak-antilocalization Induced by Spin-orbit Interaction in Two-dimensional Tellurium | Niu, Chang; Zhang, Zhuocheng; Qiu, Gang; Wang, Yixiu; Wu, Wenzhuo; Ye, Peide (Peter) | Here we report experimental results regarding weak-antilocalization (WAL) effect in n-type two-dimensional (2D) Te films at cryogenic temperatures. | Session 35: Spins in Non-magnetic Semiconductors |
| 390 | Magneto-optical properties of n-type InAsP films in ultrahigh magnetic fields | Thapa, Sunil; Stanton, Christopher; Magill, Brenden; Herath Mudiyanselage, Rathsara; Khodaparast, Giti; Matsuda, Y. H.; Yang, Zhuo; Kohama, Yoshimitsu; Choi, Sukgeun; Palmstrom, Chris | We present a theoretical/experimental study of the magneto-optical properties of n-type InAs xP 1−x films (x=0.07,0.34) in ultrahigh magnetic fields in the Faraday’s geometry at T=300 K using k.p method with modified 8-band Pidgeon-Brown model. | Session 35: Spins in Non-magnetic Semiconductors |
| 391 | Ultralong spin coherence in MAPbI3 single crystals revealed by ultrafast optics | Yao, Yue; Sheffield, Matthew; Hewa Walpitage, Heshan; Brown Heft, Isaac; Liu, Ye; Ni, Zhenyi; Huang, Jinsong; Li, Yan | Here, in order to exclude the influence of the polycrystalline structure and obtain intrinsic spin dynamics, we investigate spin dynamics on high quality MAPbI 3 single crystals by time-resolved Faraday rotation (TRFR). | Session 35: Spins in Non-magnetic Semiconductors |
| 392 | Probing the cubic crystal anisotropy and spin-orbit interaction in GaAs heterostructures using hole quantum point contacts | Hudson, Karina; Srinivasan, Ashwin; Miserev, Dmitry; WANG, Qingwen; Klochan, Oleh; Farrer, Ian; Ritchie, David; Hamilton, Alex | We find the anisotropy of the g-factor is strongly dependent on QPC orientation, and present a theoretical framework describing the SOI terms arising from cubic crystal anisotropy. | Session 35: Spins in Non-magnetic Semiconductors |
| 393 | Origin of Rashba-Dresselhaus effect in a Pb-free ferroelectric nitride perovskite. | Bandyopadhyay, Subhadeep; Dasgupta, Indra | A systematic study of orthorhombic and rhombohedral phases of this system reveal the importance of symmetry in realizing the nature of the splitting of bands around the time reversal invariant k-points. | Session 35: Spins in Non-magnetic Semiconductors |
| 394 | Efficient spin to charge conversion at strained amorphous-Si thin film interfaces | Bhardwaj, Ravindra; Katailiha, Anand; Lou, Paul; Kumar, Sandeep | This study gives a new direction of research for spin-caloritronics applications using strain engineering and amorphous materials. | Session 35: Spins in Non-magnetic Semiconductors |
| 395 | Dephasing in quasi-1D wires: Non-Markovian noise and correlations due to itinerant spin interactions | Foster, Matthew; Davis, Seth | Motivated by the interest in many-body localization, we revisit the problem of dephasing due to electron-electron scattering in quasi-1D (many channel) wires. | Session 35: Spins in Non-magnetic Semiconductors |
| 396 | Radial spin texture in elemental tellurium with chiral crystal structure | Sakano, Masato; Hirayama, Motoaki; Takahashi, Takanari; Akebi, Shuntaro; Nakayama, Mitsuhiro; Kuroda, Kenta; Taguchi, Kazuaki; Yoshikawa, Tomoki; Miyamoto, Koji; Okuda, Taichi; Ono, Kanta; Kumigashira, Hiroshi; Ideue, Toshiya; Iwasa, Yoshihiro; Natsuki, Mitsuishi; Ishizaka, Kyoko; Shin, Shik; Miyake, Takashi; Murakami, Shuichi; Sasagawa, Takao; Kondo, Takeshi | To reveal the spin textures of chiral crystals, here we investigate the spin and electronic structure in p-type semiconductor elemental tellurium by using spin- and angle-resolved photoemission spectroscopy. | Session 35: Spins in Non-magnetic Semiconductors |
| 397 | Prediction of momentum dependent spin splitting in antiferromagnetic compounds without spin-orbit coupling | Yuan, Linding; Wang, Zhi; Luo, Jun-Wei; Zunger, Alex | We identify the magnetic symmetry conditions that produce AFM prototypes having spin splitting even at TRIM points without external magnetic field and even when SOC is set to zero. | Session 35: Spins in Non-magnetic Semiconductors |
| 398 | Response of Bloch Electrons to Electric Fields | Kerr, William | We find for this model that the anomalous velocity is dominated by the term coming from the spin operator rather than the position operator. | Session 35: Spins in Non-magnetic Semiconductors |
| 399 | Birefringent Spin-Lasers | Cao, David Jiayu; Xu, Gaofeng; Labinac, Velimir; Zutic, Igor | By using transparent rate equations we explain how the birefringence can provide key differences in the modulation frequency of the intensity and polarization of light emitted from a laser. | Session 35: Spins in Non-magnetic Semiconductors |
| 400 | Modeling of the Mn-Carrier Exchange Interaction in Colloidal CdSe/CdMnS Nanoplatelets with a Multilayer Core and Magnetically Doped Shell | Pientka, James; Najafi, Arman; Tarasek, Steven; Delikanli, Savas; Zhang, Peiyao; Norden, Tenzin; Shendre, Sushant; Sharma, Manoj; Bhattacharya, Arinjoy; Taghipour, Nima; Demir, Hilmi; Petrou, Athos; Thomay, Tim | Here, we present a model that includes the carrier mediated exchange interaction and study its effect on the excitonic wavefunction. | Session 35: Spins in Non-magnetic Semiconductors |
| 401 | Correlated States and Frustration in Magnetic Quantum Dots with Multiple Occupancy | Campos, Tiago; Pientka, James; Matos Abiague, Alex; Han, Jong E; Zutic, Igor | Using exact diagonalization and conditional probability density we reveal peculiar manifestations of strongly-correlated states in Mn-doped QDs. | Session 35: Spins in Non-magnetic Semiconductors |
| 402 | Theory of Excitonic Phases in an Electron-Hole Double-Layer System with Relativistic Spin-Orbit Interaction | Zhang, Yeyang; Chen, Ke; Shindou, Ryuichi | We propose helicoidal and helical excitonic insulator phases in a Coulomb-coupled two-dimensional electron-hole double layer (EHDL) system with relativistic spin-orbit interaction. | Session 35: Spins in Non-magnetic Semiconductors |
| 403 | Effect of Scandium Nitride Film Orientation on Growth and Electrical Properties | Reed, Amber; Look, David; Smith, Hadley; Biegler, Zachary; Adams, Rachel; Hill, Madelyn; Back, Tyson; Cetnar, John | In this work, we investigate the effect of ScN orientation on film growth, composition and electrical properties. | Session 36: Synthesis and Characterization of Electronic Thin Films |
| 404 | High-Mobility Two-Dimentional Electron Gases at AlxGa1-xN/GaN Heterostructures Grown by Plasma-assisted Molecular Beam Epitaxy | Ren, Yuxing; Cho, Yongjin; Hickman, Austin; Chaudhuri, Reet; Dang, Phillip; Lee, Menyoung; Zhao, Wenwen; Zhang, Zexuan; Xing, Huili; Jena, Debdeep | In this talk, we will present how gate control of the 2DEG density helps us identify the impact of dislocations on the mobility. | Session 36: Synthesis and Characterization of Electronic Thin Films |
| 405 | Electrical Properties of Highly Functionalized Ultrathin, 2-Dimensional Hexagonal Boron Nitride | Choi, Daniel; Tsoi, Stanislav; Lock, Evgeniya; Feylgelson, Boris | In this talk, we present electrical and tunneling properties of highly functionalized, ultrathin, 2D h-BN. | Session 36: Synthesis and Characterization of Electronic Thin Films |
| 406 | Mobility fluctuation Controlled Linear Positive Magnetoresistance in 2D Semiconductor Bi2O2Se nano-plates | Li, Peng; Zhang, Chenhui; Miao, Guoxing; Zhang, Xixiang | We report the observation of positive and linear magnetoresistance in both Se-poor and Se-rich Bi 2O 2Se nano-plates grown by chemical vapor deposition. | Session 36: Synthesis and Characterization of Electronic Thin Films |
| 407 | First-principles study of adatom interactions on the β-Ga2O3(010) surface | Wang, Mengen; Mu, Sai; Van de Walle, Chris | To address this puzzle, we use density functional theory to explore the adsorption and diffusion of Ga and O adatoms on the Ga 2O 3(010) surface. | Session 36: Synthesis and Characterization of Electronic Thin Films |
| 408 | Temperature coefficient of resistance (TCR) measurement on vanadium pentoxide (V2O5) nanoparticles | Neupane, Ganga; Hari, Parameswar | In this work, we varied molar concentrations (0.05M, 0.1M, 0.15M, and 0.2M) of vanadium pentoxide (V 2O 5) to synthesize nanoparticles by hydrothermal method. | Session 36: Synthesis and Characterization of Electronic Thin Films |
| 409 | Multiscale Modeling for MOCVD Synthesis and Characterization of Transition Metal Dichalcogenides | Nayir, Nadire; Wang, Yuanxi; Xuan, Yuan; Momeni, Kasra; Sengul, Mert; Ji, Yanzhou; Choudhury, Tanushree; Reifsnyder Hickey, Danielle; Alem, Nasim; Redwing, Joan; Crespi, Vincent; Chen, Long Q.; van Duin, Adri | Herein, we develop a multiscale approach as a combination of ReaxFF, continuum fluid dynamics, phase-field (PF) and machine learning (ML) to model the gas-phase kinetic of the MOCVD growth and to connect further the MOCVD control parameters to the morphology, size, and distribution of the synthesized TMD materials. | Session 36: Synthesis and Characterization of Electronic Thin Films |
| 410 | DISTORTED PHASE OF SINGLE LAYER JANUS MoSTe | Yagmurcukardes, Mehmet; Sevik, Cem; Peeters, Francois | Therefore, we propose that the Janus MoSTe structure can be fabricated in two dynamically stable phases which possess unique electronic, dynamical, and piezoelectric properties. | Session 36: Synthesis and Characterization of Electronic Thin Films |
| 411 | Synthesis and properties of hexagonal GaBN/BN heterostructure and quantum wells. 6.3.6 | Wang, Qingwen; Li, Jing; Lin, Jingyu; Jiang, Hongxing | Here, we report the synthesis of h-GaBN alloys using metal organic vapor deposition (MOCVD) growth. | Session 36: Synthesis and Characterization of Electronic Thin Films |
| 412 | Temperature influence in the electrical conductivity of graphite oxide platelets | Sanchez, Diego; Prias, John; Ariza, Hernando | Temperature influence in the electrical conductivity of graphite oxide platelets | Session 36: Synthesis and Characterization of Electronic Thin Films |
| 413 | Thermal Expansion and Residual Strain in AlN Thin Film Sensor Materials | Lad, Robert; Greenslit, Morton; Plouff, David; Pereira da Cunha, Mauricio | In this work, epitaxial AlN (002) films were grown at 930 oC on c-cut sapphire substrates by N 2-plasma-assisted Al evaporation and were characterized up to 1000 oC in air using an X-ray diffraction (XRD) sample hot stage. | Session 36: Synthesis and Characterization of Electronic Thin Films |
| 414 | Effects of growth parameters on faceting and defects in confined epitaxial lateral overgrowth | Goswami, Aranya; Šuran Brunelli, Simone Tommaso; Markman, Brian; Pennachio, Dan; Tseng, Hsin-Ying; Choi, Sukgeun; Taylor, Aidan; Klamkin, Jonathan; Rodwell, Mark; Palmstrom, Chris | Here, we use scanning electron microscopy (SEM), transmission electron microscopy (TEM) and electron channeling contrast imaging (ECCI) to characterize these nano-structures grown by metal organic chemical vapor deposition (MOCVD) on patterned InP substrates. | Session 36: Synthesis and Characterization of Electronic Thin Films |
| 415 | Controlled Fractal Growth of Transition Metal Dichalcogenides | Wang, Peijian; Zeng, Hao; huang, shaoming | We report controlled fractal growth of atomically thin transition metal dichalcogenides (TMDCs) by chemical vapor deposition, with morphological evolution from dendritic to triangular. | Session 36: Synthesis and Characterization of Electronic Thin Films |
| 416 | Properties of SPEED Grown FTO Thin Films Deposited at Various Solution Concentrations and Ageing time | Yusuf, Gbadebo | This study has shown that the SPEED technique is a promising technique for depositing high-quality FTO thin films for solar photovoltaic applications. | Session 36: Synthesis and Characterization of Electronic Thin Films |
| 417 | Non-degenerate heavy electrons and Planckian limit to scattering in doped strontium titanate | Collignon, Clement; Fauque, Benoit; Behnia, Kamran | Here, we present a study of electric resistivity and thermoelectric power above room temperature pointing to a possible exit out of this maze. | Session 37: Thermal and Ballistic Transport in Semiconductors |
| 418 | Energetics of solid-state metathesis reactions in nanostructured thermoelectric systems | Hua, Xia; Doak, Jeff; Wolverton, Christopher | In this work, we use high-throughput density functional theory (DFT) calculations to evaluate the metathesis reactions (AB+A’B’↔A’B+AB’) of 1638 quaternary phase systems (A,A’)(B,B’) in order to understand the behaviors and predict potential nanostructured thermoelectrics. | Session 37: Thermal and Ballistic Transport in Semiconductors |
| 419 | The thermoshape voltage induced by quantum shape effects | Sisman, Altug; Aydin, Alhun; Fransson, Jonas | We propose here a new effect for the conversion of heat energy into electricity with nanostructures. | Session 37: Thermal and Ballistic Transport in Semiconductors |
| 420 | Observation of anomalous Shapiro steps in ballistic Josephson junctions of InAs nanowires | Ueda, Kento; Matsuo, Sadashige; Kamata, Hiroshi; Takeshige, Yuusuke; Sato, Yosuke; Baba, Shoji; Samuelson, Lars; Li, Kan; Jeppesen, Soren; Xu, Hongqi; Tarucha, Seigo | Here we report on observation of anomalous Shapiro steps measured in Josephson junctions (JJs) of InAs NWs. | Session 37: Thermal and Ballistic Transport in Semiconductors |
| 421 | Ballistic transport in black phosphorus transistors | Li, Xuefei | Here we show that the transport properties of BP device under high electric field can be improved greatly by the interface engineering of high-quality HfLaO dielectrics and transport orientation. | Session 37: Thermal and Ballistic Transport in Semiconductors |
| 422 | Quantum Technologies using Ge and GeSn on Si. | Gul, Yilmaz; Holmes, Stuart; myronov, maksym; Pepper, Michael | We present here a ballistic transport study of patterned surface gates on strained Ge quantum wells with SiGe barriers, which confirms the quantum characteristics of the Ge heavy hole valence band structure in 1-dimension. | Session 37: Thermal and Ballistic Transport in Semiconductors |
| 423 | Thermal transistor and thermometer based on coupled quantum dot and point contact | Yang, Jing; Elouard, Cyril; Splettstoesser, Janine; Sothmann, Björn; Sánchez, Rafael; Jordan, Andrew | We propose a three-terminal setup consisting of a Coulomb coupled quantum dot quantum point contact. | Session 37: Thermal and Ballistic Transport in Semiconductors |
| 424 | Hopping conduction characterization in amorphous semiconductors and cross-linked metal nanoparticles | Western, Brianna; Harcrow, Michael; Syllaios, Athanasios; Lopes, Vincent; Littler, Christopher; Yu, Zhi-Gang; Gunawidjaja, Ray | This work examines the effect of different organic ligands on electrical conductivity and TCR in CLMPs. | Session 37: Thermal and Ballistic Transport in Semiconductors |
| 425 | Non-equilibrium nature of non-linear optical response: Application to the bulk photo voltaic effect | Barik, Tamoghna; Sau, Jay | We theoretically study this effect in the presence of electron-phonon interactions. | Session 37: Thermal and Ballistic Transport in Semiconductors |
| 426 | Measurement of Hall conductivity near the metal insulator transition by torque magnetometry | Mumford, Samuel; Paul, Tiffany; Lee, Seung Hwan; Yacoby, Amir; Kapitulnik, Aharon | We study Hall conductivity near the disorder-induced metal-insulator transition and present the first measurements of Hall conductivity utilizing a torque magnetometry method. | Session 37: Thermal and Ballistic Transport in Semiconductors |
| 427 | Kinetic Inductance in Ballistic Transport Jashan Singhal1 and Debdeep Jena1,2,3 1 School of Electrical and Computer Engineering, Cornell University 2 Department of Materials Science and Engineering, Cornell University 3 Kavli Institute at Cornell for Nanoscale Science, Cornell | Singhal, Jashan; Jena, Debdeep | We investigate the generalized kinetic inductance in a d-dimensional conductor with various band-structures (e.g. parabolic and conical) in the ballistic limit. | Session 37: Thermal and Ballistic Transport in Semiconductors |
| 428 | Novel computational approach for electron-transport from first-principles | Ganose, Alex; Park, Junsoo; Jain, Anubhav | We have developed a new framework for calculating the electronic transport properties of solid-state materials from first-principles. | Session 37: Thermal and Ballistic Transport in Semiconductors |
| 429 | A model of dephasing in shift current processes | Fregoso, Benjamin | We construct a simple model of electrons coupled to a chain of one-dimensional ions lacking inversion symmetry. | Session 37: Thermal and Ballistic Transport in Semiconductors |
| 430 | Charge Scattering Mechanisms in shallow InAs quantum wells | Cimpoiasu, Elena; Fox, Matthew; Mack, Shawn; Christodoulides, Joseph; Bennett, Brian | We studied the charge scattering mechanisms present in In 0.2Al 0.8Sb/InAs/Al 0.8Ga 0.2Sb wells placed in close proximity to the surface of the heterostructures, at depths from 7 nm to 15 nm. | Session 38: Thermodynamic and Transport Properties |
| 431 | Transport properties of exfoliated GaTe thin flakes | Zheng, Wenkai; Felder, Justin; Goraum, Zachary; McCandless, Gregory; Chan, Julia; Balicas, Luis | Here we discuss the temperature-dependent response of Field-Effect Transistors fabricated from GaTe single-crystals grown via a flux method, and measured through two and foru-terminal configurations. | Session 38: Thermodynamic and Transport Properties |
| 432 | Electronic Properties of Bismuth Iodide (Bi4I4) Thin Films | Liu, Yulu; Chen, Ruoyu; Li, Sheng; Liu, Xiaoyuan; Taniguchi, Takashi; Watanabe, Kenji; Lv, Bing; Zhang, Fan; Lau, Chun Ning | Here we report transport measurements of thin Bi 4I 4 films that are mechanically exfoliated Bi 4I 4 from bulk crystals. | Session 38: Thermodynamic and Transport Properties |
| 433 | Tunneling Two-Level Systems in Amorphous Silica Thin Films | Dauer, Thomas; Molina-Ruiz, Manel; Abernathy, Matthew; Metcalf, Thomas; Liu, Xiao; Hellman, Frances | We present low-temperature (down to 300 mK) specific heat and mechanical loss measurements on silica thin films grown at temperatures from 60 to 800 °C by e-beam evaporation. | Session 38: Thermodynamic and Transport Properties |
| 434 | Origin of Two-Level Systems in Amorphous Silicon | Molina-Ruiz, Manel; Rosen, Yaniv; Dauer, Thomas; Jacks, Hilary; Abernathy, Matthew; Metcalf, Thomas; Liu, Xiao; DuBois, Jonathan; Hellman, Frances | We performed mechanical and dielectric loss measurements of amorphous silicon films grown by electron beam deposition. | Session 38: Thermodynamic and Transport Properties |
| 435 | Electrical Transport in Chemically Exfoliated LixCoO2 in 2D Nanoflake Form | Crowley, Kyle; Pachuta, Kevin; Radha, Santosh kumar; Volkova, Halyna; Sehirlioglu, Alp; Lambrecht, Walter; Berger, Marie-Helene; Gao, Xuan | This technique offers potential for exploring Li xCoO 2 in its two dimensional form, which has not been reported for single crystals to date. | Session 38: Thermodynamic and Transport Properties |
| 436 | Diamagnetic Susceptibility, Disorder, and Linear Magnetoresistance in Ag2-δTe | Leahy, Ian; Siegfried, Peter; Schnyders, Harold; Lee, Minhyea | We investigate the magnetotransport properties of the narrow-gap semiconductors Ag 2-δTe as a function of silver deficiency in order to quantify the role of disorder on their observed linear magnetoresistance. | Session 38: Thermodynamic and Transport Properties |
| 437 | Quantum Transport in Epitaxial Ultra Wide Bandgap Aluminum Gallium Oxide Tunnel Heterostructures | Tanen, Nicholas; Chang, Celesta; Protasenko, Vladimir; McCandless, Jonathan; Muller, David; Xing, Huili; Jena, Debdeep | In this work, we studied the epitaxial growth of the wide-band gap, monoclinic beta-Ga 2O 3 (~4.4-4.9 eV) and (Al xGa 1-x) 2O 3 (~4.4-9.0 eV, Al% = 0-100) using molecular beam epitaxy on (010) beta-Ga 2O 3 substrates. | Session 38: Thermodynamic and Transport Properties |
| 438 | Lateral charge carrier transport properties of B-10 enriched hexagonal boron nitride epilayers | Grenadier, Samuel; Maity, Avisek; Li, Jing; Lin, Jingyu; Jiang, Hongxing | We report Time-of-Flight (TOF) probed room temperature lateral carrier drift mobilities (µ) and lifetimes (τ) for both electrons and holes in highly resistive, wide bandgap h-BN epilayers. | Session 38: Thermodynamic and Transport Properties |
| 439 | Physical properties at the 157K-phase transition in Pr4Ni3O10 | Huangfu, Shangxiong; Gawryluk, Dariusz; Zhang, Xiaofu; Pomjakushina, Ekaterina; Schilling, Andreas | We observe a distinct anisotropy between in-plane and out-of-plane properties both in zero-field and in magneto-resistance. | Session 38: Thermodynamic and Transport Properties |
| 440 | Charge transport mechanism near crystal edge of layered halide perovskites | Lian, Xiujun; Shi, Enzheng; Dou, Letian; Gao, Hanwei | Charge transport mechanism near crystal edge of layered halide perovskites | Session 38: Thermodynamic and Transport Properties |
| 441 | Dynamic disorder in BaTiS3 | Hermann, Raphael; Manley, Michael; Winn, Barry; Page, Katharine; Alatas, Ahmet; Moon, Jaeyun; Minnich, Austin; Ravichandran, Jayakanth | Dynamic disorder in BaTiS3 | Session 38: Thermodynamic and Transport Properties |
| 442 | A High Throughput DFT Study of Half Heusler Solid Solution Mixtures | Lee, Andrew; Anand, Shashwat; Ward, Logan; Wolverton, Christopher | Here, we use DFT to calculate mixing energies and relative stabilities of around 1000 binary solid solutions using restrictions of isovalent substitution and single sublattice mixing. | Session 38: Thermodynamic and Transport Properties |
| 443 | Low temperature thermopower in CoSbS | Du, Qianheng; Abeykoon, Milinda; Liu, Yu; Kotliar, Gabriel; Petrovic, Cedomir | We report giant thermopower S = 2.5 mV/K in CoSbS single crystals [1], a material that shows strong high-temperature thermoelectric performance when doped with Ni or Se. | Session 38: Thermodynamic and Transport Properties |
| 444 | Large magnetothermopower and anomalous Nernst effect in HfTe5 | Hu, Junfeng; Caputo, Marco; Guedes, Eduardo; Tu, Sa; Martino, Edoardo; Magrez, Arnaud; berger, helmuth; Dil, J. Hugo; Yu, Haiming; Ansermet, Jean-Philippe | Here, we experimentally study thermoelectric effects in HfTe 5, which was predicted to be at the boundary between strong and weak topological insulators. | Session 38: Thermodynamic and Transport Properties |