Search Results - "Gurunathan, Ramya"

Weighted Mobility by Snyder, G. Jeffrey, Snyder, Alemayouh H., Wood, Maxwell, Gurunathan, Ramya, Snyder, Berhanu H., Niu, Changning

“…Engineering semiconductor devices requires an understanding of charge carrier mobility. Typically, mobilities are estimated using Hall effect and electrical…”
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Thermoelectric transport effects beyond single parabolic band and acoustic phonon scattering by Wang, Heng, Gurunathan, Ramya, Fu, Chenguang, Cui, Runzi, Zhu, Tiejun, Snyder, G. Jeffrey

“…Thermoelectric materials have been extensively studied for applications in solid-state power generation and cooling. Progress has been made over the past…”
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Room-temperature epitaxy of metal thin films on tungsten diselenide by Cooley, Kayla A., Alsaadi, Rajeh, Gurunathan, Ramya L., Domask, Anna C., Kerstetter, Lauren, Saidi, Wissam A., Mohney, Suzanne E.

“…•Many but not all metals exhibit room-temperature epitaxy on WSe2.•Epitaxial metals have matching symmetry but can have a large lattice mismatch.•Epitaxy…”
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Thermal studies of individual Si/Ge heterojunctions — The influence of the alloy layer on the heterojunction by Sien Wang, Dongchao Xu, Ramya Gurunathan, G. Jeffrey Snyder, Qing Hao

“…Phonon transport across an interface is of fundamental importance to applications ranging from electronic and optical devices to thermoelectric materials. The…”
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Pd and Au Contacts to SnS: Thermodynamic Predictions and Annealing Study by Gurunathan, Ramya L., Nasr, Joseph, Cordell, Jacob J., Banai, Rona A., Abraham, Michael, Cooley, Kayla A., Horn, Mark, Mohney, Suzanne E.

“…Tin(II) sulfide (SnS) is emerging as an attractive p -type absorber layer material for thin film photovoltaics, which motivates the search for Ohmic,…”
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Effective Mass from Seebeck Coefficient by Snyder, Gerald Jeffrey, Pereyra, Alessandro, Gurunathan, Ramya

“…Engineering semiconductor devices requires an understanding of the effective mass of electrons and holes. Effective masses have historically been determined in…”
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AtomVision: A Machine Vision Library for Atomistic Images by Choudhary, Kamal, Gurunathan, Ramya, DeCost, Brian, Biacchi, Adam

“…Computer vision techniques have immense potential for materials design applications. In this work, we introduce an integrated and general-purpose AtomVision…”
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Thermal conductivity of complex materials by Snyder, G Jeffrey, Agne, Matthias T, Gurunathan, Ramya

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Mapping Thermoelectric Transport in a Multicomponent Alloy Space by Gurunathan, Ramya, Sarker, Suchismita, Borg, Christopher K. H., Saal, James, Ward, Logan, Mehta, Apurva, Snyder, G. Jeffrey

“…Interest in high entropy alloy thermoelectric materials is predicated on achieving ultralow lattice thermal conductivity κL through large compositional…”
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Phonon-Defect Interactions in Thermoelectric Materials by Gurunathan, Ramya L

“…Engineering heat transport in materials is essential for thermal management in a wide range of technologies, from batteries to thermoelectrics. Materials host…”
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A Percolation Model for Piezoresistivity in Conductor–Polymer Composites by Wang, Mingyi, Gurunathan, Ramya, Imasato, Kazuki, Geisendorfer, Nicholas R., Jakus, Adam E., Peng, Jun, Shah, Ramille N., Grayson, Matthew, Snyder, G. Jeffrey

“…Insulating polymer composites with conductive filler particles are attractive for sensor applications due to their large piezoresistive response. Composite…”
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Measuring the Burgers Vector of Dislocations with Dark-Field X-ray Microscopy by Pal, Dayeeta, Wang, Yifan, Gurunathan, Ramya, Dresselhaus-Marais, Leora

“…The behavior of dislocations is essential to understand material properties, but their subsurface dynamics that are representative of bulk phenomena cannot be…”
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Rapid Prediction of Phonon Structure and Properties using an Atomistic Line Graph Neural Network (ALIGNN) by Gurunathan, Ramya, Choudhary, Kamal, Tavazza, Francesca

“…The phonon density-of-states (DOS) summarizes the lattice vibrational modes supported by a structure, and gives access to rich information about the material's…”
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AtomVision: A machine vision library for atomistic images by Choudhary, Kamal, Gurunathan, Ramya, DeCost, Brian, Biacchi, Adam

“…Computer vision techniques have immense potential for materials design applications. In this work, we introduce an integrated and general-purpose AtomVision…”
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Recent progress in the JARVIS infrastructure for next-generation data-driven materials design by Wines, Daniel, Gurunathan, Ramya, Garrity, Kevin F, DeCost, Brian, Biacchi, Adam J, Tavazza, Francesca, Choudhary, Kamal

“…Appl. Phys. Rev. 10, 041302 (2023) The Joint Automated Repository for Various Integrated Simulations (JARVIS) infrastructure at the National Institute of…”
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Thermal Resistance at a Twist Boundary and Semicoherent Heterointerface by Gurunathan, Ramya, Hanus, Riley, Graham, Samuel, Garg, Anupam, Snyder, G. Jeffrey

“…Phys. Rev. B 103, 144302 (2021) Traditional models of interfacial phonon scattering, including the acoustic mismatch model (AMM) and diffuse mismatch model…”
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Mapping Thermoelectric Transport in a Multicomponent Alloy Space by Gurunathan, Ramya, Sarker, Suchismita, Borg, Christopher K. H, Saal, James, Ward, Logan, Mehta, Apurva, Snyder, G. Jeffrey

“…Interest in high entropy alloy thermoelectric materials is predicated on achieving ultralow lattice thermal conductivity $\kappa\sub{L}$ through large…”
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Phonon Scattering in the Complex Strain Field of a Dislocation by Sun, Yandong, Zhou, Yanguang, Gurunathan, Ramya, Zhang, Jin-Yu, Hu, Ming, Liu, Wei, Xu, Ben, Snyder, G. Jeffrey

“…Strain engineering is critical to the performance enhancement of electronic and thermoelectric devices because of its influence on the material thermal…”
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Analytical Models of Phonon-Point Defect Scattering by Gurunathan, Ramya, Hanus, Riley, Dylla, Maxwell, Katre, Ankita, Snyder, G. Jeffrey

“…Phys. Rev. Applied 13, 034011 (2020) Point defects exist widely in engineering materials and are known to scatter vibrational modes to reduce thermal…”
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