TY - JOUR
T1 - Optical phonons in GaN
AU - Azuhata, T.
AU - Matsunaga, T.
AU - Shimada, K.
AU - Yoshida, K.
AU - Sota, T.
AU - Suzuki, K.
AU - Nakamura, S.
N1 - Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 1996/4/1
Y1 - 1996/4/1
N2 - We report on all optically active phonon frequencies of wurtzite GaN determined using Raman, infrared reflection, and attenuated total reflection spectra of a high quality GaN film of 2 μm thickness. We also show results of lattice dynamical calculations using a rigid ion model. Force constants and charge as fitting parameters were determined so as to reproduce all zone-center phonon frequencies and sound velocities for the high symmetry lines. We present phonon dispersion curves and phonon density of states of wurtzite GaN.
AB - We report on all optically active phonon frequencies of wurtzite GaN determined using Raman, infrared reflection, and attenuated total reflection spectra of a high quality GaN film of 2 μm thickness. We also show results of lattice dynamical calculations using a rigid ion model. Force constants and charge as fitting parameters were determined so as to reproduce all zone-center phonon frequencies and sound velocities for the high symmetry lines. We present phonon dispersion curves and phonon density of states of wurtzite GaN.
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U2 - 10.1016/0921-4526(95)00789-X
DO - 10.1016/0921-4526(95)00789-X
M3 - Article
AN - SCOPUS:13544255793
VL - 219-220
SP - 493
EP - 495
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
SN - 0921-4526
IS - 1-4
ER -