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Far Infrared and Raman Optical Study of CdInGaS 4 , CdIn 2 S 4 , HgInGaS 4 and CdIn 2 S 2 Se 2 Crystals
Author(s) -
Syrbu N. N.,
Radautsan S. I.,
Cretu R. V.,
Tezlevan V. E.,
Moldoveanu N. A.
Publication year - 1996
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/crat.2170310308
Subject(s) - raman spectroscopy , infrared , analytical chemistry (journal) , dielectric , reflectivity , dispersion (optics) , phonon , limiting , materials science , spectral line , chemistry , optics , physics , condensed matter physics , optoelectronics , mechanical engineering , engineering , chromatography , astronomy
Raman and infrared reflectivity spectra of CdInGaS 4 , CdIn 2 G 4 , HgInGaS 4 , and CdIn 2 S 2 Se 2 crystals have been investigated. The fiindamental phonon parameters, the limiting dielectric constants ϵ 0 and ϵ∞ and the reflectivity spectrum contours have been calculated using classical dispersion relations.