Elastic constants of gallium nitride

Journal Article · Fri Mar 01 04:00:00 EST 1996 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.361236· OSTI ID:278916

Polian, A ^[1]; Grimsditch, M ^[2]; Grzegory, I ^[3]

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1. Physique des Milieux Condenses, Universite Pierre et Marie Curie, 4 Place Jussieu, F-75252 Paris Cedex 05 (France)
2. Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
3. UNIPRESS, Polish Academy of Sciences, Sokol/owska 29, PL-01 142 Warszawa (Poland)

The elastic constants of GaN have been determined using Brillouin scattering; in GPa they are: {ital C}{sub 11}=390, {ital C}{sub 33}=398, {ital C}{sub 44}=105, {ital C}{sub 66}=123, {ital C}{sub 12}=145, and {ital C}{sub 13}=106. Our values differ substantially from those quoted in the literature which were obtained from the determination of mean square displacement of atoms measured by x-ray diffraction. {copyright} {ital 1996 American Institute of Physics.}

• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 278916
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 6 Vol. 79; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BRILLOUIN EFFECT
ELASTIC CONSTANTS
ELASTICITY
GALLIUM NITRIDES
HEXAGONAL LATTICES
MONOCRYSTALS