Dielectric properties of wurtzite and zincblende structure gallium nitride

R. Wang; P. P. Ruden; J. Kolnik; I. Oguzman; K. F. Brennan

doi:10.1016/S0022-3697(96)00219-3

Dielectric properties of wurtzite and zincblende structure gallium nitride

R. Wang
, P. P. Ruden
, J. Kolnik
, I. Oguzman
, K. F. Brennan

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

39 Scopus citations

Abstract

We present calculated results for the wavevector and frequency dependent dielectric functions of zincblende and wurtzite GaN based on empirical pseudopotential band structures. The q^→-dependent static dielectric functions, ∈_∞(q^→), are found to be similar for the two crystal modifications. The optical dielectric functions, ∈_∞(ω), however, are different in the range 6eV < (latin small letter h with stroke)ω < 12eV. We also evaluate the indices of refraction in the frequency range near the fundamental bandgaps and the absorption coefficients above the bandgaps for both modifications of GaN. The results are in good agreement with experimental data. The birefringence of wurtzite GaN is briefly discussed.

Original language	English (US)
Pages (from-to)	913-918
Number of pages	6
Journal	Journal of Physics and Chemistry of Solids
Volume	58
Issue number	6
DOIs	https://doi.org/10.1016/S0022-3697(96)00219-3
State	Published - Jun 1997

Bibliographical note

Funding Information:
RW thanks Drs James Chelikowsky and Barry Schaudt for helpful discussions. We acknowledge the Minnesota Supercomputer Institute (MSI) for technical support. This work is supported in part by NSF under contract numbers ECS-9408479 (University of Minnesota) and ECS-9313635 (Georgia Institute of Technology).

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Keywords

A. electronic materials
A. semiconductors
D. dielectric properties
D. electronic structure

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10.1016/S0022-3697(96)00219-3

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title = "Dielectric properties of wurtzite and zincblende structure gallium nitride",

abstract = "We present calculated results for the wavevector and frequency dependent dielectric functions of zincblende and wurtzite GaN based on empirical pseudopotential band structures. The q→-dependent static dielectric functions, ∈∞(q→), are found to be similar for the two crystal modifications. The optical dielectric functions, ∈∞(ω), however, are different in the range 6eV < (latin small letter h with stroke)ω < 12eV. We also evaluate the indices of refraction in the frequency range near the fundamental bandgaps and the absorption coefficients above the bandgaps for both modifications of GaN. The results are in good agreement with experimental data. The birefringence of wurtzite GaN is briefly discussed.",

keywords = "A. electronic materials, A. semiconductors, D. dielectric properties, D. electronic structure",

author = "R. Wang and Ruden, \{P. P.\} and J. Kolnik and I. Oguzman and Brennan, \{K. F.\}",

note = "Funding Information: RW thanks Drs James Chelikowsky and Barry Schaudt for helpful discussions. We acknowledge the Minnesota Supercomputer Institute (MSI) for technical support. This work is supported in part by NSF under contract numbers ECS-9408479 (University of Minnesota) and ECS-9313635 (Georgia Institute of Technology). ",

year = "1997",

month = jun,

doi = "10.1016/S0022-3697(96)00219-3",

language = "English (US)",

volume = "58",

pages = "913--918",

journal = "Journal of Physics and Chemistry of Solids",

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TY - JOUR

T1 - Dielectric properties of wurtzite and zincblende structure gallium nitride

AU - Wang, R.

AU - Ruden, P. P.

AU - Kolnik, J.

AU - Oguzman, I.

AU - Brennan, K. F.

N1 - Funding Information: RW thanks Drs James Chelikowsky and Barry Schaudt for helpful discussions. We acknowledge the Minnesota Supercomputer Institute (MSI) for technical support. This work is supported in part by NSF under contract numbers ECS-9408479 (University of Minnesota) and ECS-9313635 (Georgia Institute of Technology).

PY - 1997/6

Y1 - 1997/6

N2 - We present calculated results for the wavevector and frequency dependent dielectric functions of zincblende and wurtzite GaN based on empirical pseudopotential band structures. The q→-dependent static dielectric functions, ∈∞(q→), are found to be similar for the two crystal modifications. The optical dielectric functions, ∈∞(ω), however, are different in the range 6eV < (latin small letter h with stroke)ω < 12eV. We also evaluate the indices of refraction in the frequency range near the fundamental bandgaps and the absorption coefficients above the bandgaps for both modifications of GaN. The results are in good agreement with experimental data. The birefringence of wurtzite GaN is briefly discussed.

AB - We present calculated results for the wavevector and frequency dependent dielectric functions of zincblende and wurtzite GaN based on empirical pseudopotential band structures. The q→-dependent static dielectric functions, ∈∞(q→), are found to be similar for the two crystal modifications. The optical dielectric functions, ∈∞(ω), however, are different in the range 6eV < (latin small letter h with stroke)ω < 12eV. We also evaluate the indices of refraction in the frequency range near the fundamental bandgaps and the absorption coefficients above the bandgaps for both modifications of GaN. The results are in good agreement with experimental data. The birefringence of wurtzite GaN is briefly discussed.

KW - A. electronic materials

KW - A. semiconductors

KW - D. dielectric properties

KW - D. electronic structure

UR - https://www.scopus.com/pages/publications/0031167254

UR - https://www.scopus.com/pages/publications/0031167254#tab=citedBy

U2 - 10.1016/S0022-3697(96)00219-3

DO - 10.1016/S0022-3697(96)00219-3

M3 - Article

AN - SCOPUS:0031167254

SN - 0022-3697

VL - 58

SP - 913

EP - 918

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

IS - 6

ER -

Dielectric properties of wurtzite and zincblende structure gallium nitride

Abstract

Bibliographical note

UN SDGs

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