%0 Journal Article
%T Phonon signature of the high-pressure rocksalt phase of InN
%+ Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC)
%+ Surfaces, Interfaces et Nano-Objets (CEMES-SINanO)
%+ Laboratoire Charles Coulomb (L2C)
%A Kunc, Karel
%A Polian, Alain
%A Demangeot, François
%A Briot, Olivier
%< avec comité de lecture
%Z L2C:15-078
%@ 0370-1972
%J physica status solidi (b)
%I Wiley
%V 252
%N 9
%P 2104–2110
%8 2015-06-06
%D 2015
%R 10.1002/pssb.201552126
%K ab initio calculation
%K high pressure
%K rocksalt phase
%K InN
%K phonons
%K Raman scattering
%Z Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]Journal articles
%X Phonon dispersion ω(q) and phonon density of states g(ω) of the high-pressure rocksalt phase of InN are calculated ab initio, at different pressures, using the density functional perturbation theory. Born effective charge e ∗ T , LDA values of dielectric con- stant ∞ and of the electronic gap E g are obtained as well. Building on the theoretical knowledge of phonon frequencies and their evolution with pressure, we attempt to interpret the set of six bands found previously in Raman spectra of epitaxial layers and of InN-nanowires.
%G English
%L hal-01158625
%U https://hal.science/hal-01158625
%~ MNHN
%~ UPMC
%~ UNIV-TLSE3
%~ CNRS
%~ INSA-TOULOUSE
%~ IMPMC
%~ ALLINSP
%~ L2C
%~ INC-CNRS
%~ UPMC_POLE_2
%~ MIPS
%~ UNIV-MONTPELLIER
%~ CEMES
%~ SINANO
%~ INSA-GROUPE
%~ SORBONNE-UNIVERSITE
%~ SU-SCIENCES
%~ ALLIANCE-SU
%~ TOULOUSE-INP
%~ UNIV-UT3
%~ UT3-INP
%~ UT3-TOULOUSEINP
%~ UM-2015-2021
%~ TEST2-HALCNRS