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Phonon Frequencies in GaAs
Author(s) -
Patel C.,
Parker T. J.,
Jamshidi H.,
Sherman W. F.
Publication year - 1984
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221220210
Subject(s) - phonon , brillouin zone , condensed matter physics , raman spectroscopy , raman scattering , ion , lattice (music) , physics , brillouin scattering , neutron scattering , basis (linear algebra) , scattering , computational physics , optics , materials science , quantum mechanics , mathematics , geometry , acoustics , optical fiber
The eleven‐parameter rigid‐ion model is used to describe the lattice dynamics of GaAs. The model gives a satisfactory description of reported neutron scattering data throughout most of the Brillouin zone, and critical point phonon frequencies calculated with the model are shown to provide a satisfactory basis for the assignment of nearly all features in the reported two‐phonon infrared spectrum and second‐order Raman spectrum of GaAs.