Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session P44: Electrons, Phonons, Electron Phonon Scattering, and Phononics III
2:30 PM–5:30 PM,
Wednesday, March 4, 2020
Room: 704
Sponsoring
Units:
DCOMP DMP
Chair: Olivier Delaire, Duke University
Abstract: P44.00006 : Unraveling a New Heat Transport Regime at The Nanoscale.*
Presenter:
Giuseppe Barbalinardo
(University of California, Davis)
Authors:
Giuseppe Barbalinardo
(University of California, Davis)
Zekun Chen
(University of California, Davis)
Shunda Chen
(University of California, Davis)
Davide Donadio
(University of California, Davis)
In this work, we analyze the current state of the art of heat transport in semiconductor nanostructures. We identify substantial gaps in the theoretical treatment of the quasi-ballistic transport regime, and we propose a new atomistic model to compute the thermal conductivity of nanoscale systems, including both quantum and finite boundaries effects. Our novel approach is implemented in a computational environment, which gives to the powerful framework of anharmonic lattice dynamics, the ability to perform high accuracy predictions for finite size systems, and provide a rigorous alternative to non-equilibrium molecular dynamics.
*The Molecular Sciences Software Institute (MolSSI)
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