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Low‐Temperature Raman Scattering Spectra of GaSe x S 1‐x Layered Mixed Crystals
Author(s) -
Gasanly N. M.,
Aydinli A.
Publication year - 2002
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/1521-4079(200209)37:9<1011::aid-crat1011>3.0.co;2-0
Subject(s) - raman spectroscopy , raman scattering , brillouin zone , brillouin scattering , anisotropy , spectral line , dispersion (optics) , materials science , scattering , molecular physics , chemistry , optics , crystallography , condensed matter physics , physics , optical fiber , astronomy
Raman scattering has been used to study the vibrational spectra of GaSe x S 1‐x layered mixed crystals at 10 K. We report the frequency dependencies of different modes on composition x , with particular emphasis on A ′ 1 (2) ( A 1 g 1 ) and A ′ 1 (4) ( A 1 g 2 ) intralayer compressional modes having low dispersion in the Brillouin zone. The appearance of additional bands is attributed to multimode behavior typically exhibited by mixed crystals of anisotropic compounds.