Bulletin of the American Physical Society
APS March Meeting 2019
Volume 64, Number 2
Monday–Friday, March 4–8, 2019; Boston, Massachusetts
Session E20: First-principles Modeling of Excited-state Phenomena in Materials IV: Time-dependent Density Functional Theory
8:00 AM–11:00 AM,
Tuesday, March 5, 2019
BCEC
Room: 157A
Sponsoring
Units:
DCOMP DMP
Chair: Sahar Sharifzadeh, Boston University
Abstract: E20.00010 : Negative Differential Conductivity in Semiconductors from First Principles*
10:12 AM–10:24 AM
Presenter:
Rafi Ullah
(Lawrence Livermore Natl Lab)
Authors:
Rafi Ullah
(Lawrence Livermore Natl Lab)
Xavier Andrade
(Lawrence Livermore Natl Lab)
Alfredo A. Correa
(Lawrence Livermore Natl Lab)
nature and can not be accurately described by linear response theories. We have used time dependent density functional theory to compute the NDC in GaAs, a prototypical semiconductor. It is one of the first materials in which NDC was observed and widely used in NDC
based applications.
[1] R. D. Duncan, Phys. Rev. 17, 302 (1921).
[2] J.B. Gunn, Solid State Commun. 1, 88 (1963).
[3] B. R. Pamplin, Contemp. Phys. 11, 1 (1970).
[4] R. Labouvie et. al., Phys. Rev. Lett. 115, 050601 (2015).
[5] X. Andrade, et. al, Eur. Phys. J. B 91, 229 (2018).
*Prepared by LLNL under Contract DE-AC52-07NA27344
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