Zone-centered phonons in galnpi

J. Pujol, F. Alsina, J. Pascual, J. Camassel

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Abstract

We present a theoretical study of optical phonon modes in trigonal GaInP2. We use a simple Keating model with only two series of parameters, bond-stretching and bond-bending force constants, between first-nearest neighbours, whichare obtained by least-mean-squares fit to phonon modes in GaP and InP binary compound. Calculations show outstanding the following characteristics of optic phonons in GaInP2: GaP-like stretching modes are more sensitive to thetrigonal distorsion than InP-like ones. For r1—r3 doublets, planar r3 symmetry modes have greater energy than theiraxial Tl partners. © 1993 The Japan Society of Applied Physics.
Original languageEnglish
Pages (from-to)739-740
JournalJapanese Journal of Applied Physics
Volume32
Issue numberS3
DOIs
Publication statusPublished - 1 Jan 1993

Keywords

  • Keating model
  • Ordered GalnP
  • Zone center modes

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