Abstract
A systematic density functional theory study of strain effects on the electronic band structure of the group-III nitrides (AlN, GaN, and InN) is presented. To overcome the deficiencies of the local-density and generalized gradient approximations the Heyd–Scuseria–Ernzerhof (HSE) hybrid functional is used. Cross checks for GaN demonstrate good agreement between HSE and exact-exchange based G0W0 calculations. We observe a pronounced nonlinear dependence of band-energy differences on strain. For realistic strain conditions in the linear regime around the experimental equilibrium volume a consistent and complete set of deformation potentials is derived.
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Dates
Type | When |
---|---|
Created | 15 years, 11 months ago (Sept. 25, 2009, 8:23 a.m.) |
Deposited | 2 years, 1 month ago (July 2, 2023, 6:44 p.m.) |
Indexed | 1 day, 13 hours ago (Aug. 23, 2025, 9:54 p.m.) |
Issued | 15 years, 11 months ago (Sept. 21, 2009) |
Published | 15 years, 11 months ago (Sept. 21, 2009) |
Published Online | 15 years, 11 months ago (Sept. 24, 2009) |
Published Print | 15 years, 11 months ago (Sept. 21, 2009) |
@article{Yan_2009, title={Strain effects in group-III nitrides: Deformation potentials for AlN, GaN, and InN}, volume={95}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.3236533}, DOI={10.1063/1.3236533}, number={12}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Yan, Qimin and Rinke, Patrick and Scheffler, Matthias and Van de Walle, Chris G.}, year={2009}, month=sep }