Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session B27: Applications of Semiconductors, Dielectrics, and Complex Oxides
11:15 AM–2:03 PM,
Monday, March 2, 2020
Room: 404
Sponsoring
Unit:
FIAP
Chair: Meeghage Perera, National Research Council
Abstract: B27.00002 : Alloying hexagonal/orthorhombic Ga2O3 with Al2O3*
Presenter:
Sierra Seacat
(Department of Physics & Astronomy, University of Kansas)
Authors:
Sierra Seacat
(Department of Physics & Astronomy, University of Kansas)
John Lyons
(Center for Computational Materials Science, US Naval Research Laboratory)
Hartwin Peelaers
(Department of Physics & Astronomy, University of Kansas)
Here we use density functional theory with hybrid functionals to elucidate how alloying with Al2O3 can be used to modify the structural and electronic properties of Ga2O3. We focus on tuning lattice constants and band gaps as a function of Al concentration. We also report the absolute alignments of valence and conduction bands. Our quantitative results can be used to guide experimental design of new devices.
*Work supported by the Office of Naval Research through the Naval Research Laboratory’s Basic Research Program.
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