Davydov doublets in Raman spectra of ϵ-GaSe

Raman scattering spectra of ϵ-GaSe and β-Gas crystals were examined at temperature 8° and 295°K with a resolution of 0.7 cm −1. At low temperature the Davydov splitting of modes in ϵ-GaSe could be accurately measured. The largest splitting of the Raman bands in ϵ-GaSe was found to be about 3 cm −1 a...

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Bibliographic Details
Published in:Solid state communications 1986-07, Vol.59 (3), p.133-136
Main Authors: Allakhverdiev, K.R., Salaev, E.Yu, Tagyev, M.M., Babaev, S.S., Genzel, L.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Infrared and raman spectra and scattering
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Physics
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Summary:Raman scattering spectra of ϵ-GaSe and β-Gas crystals were examined at temperature 8° and 295°K with a resolution of 0.7 cm −1. At low temperature the Davydov splitting of modes in ϵ-GaSe could be accurately measured. The largest splitting of the Raman bands in ϵ-GaSe was found to be about 3 cm −1 and correlates well with that predicted from a model based on the molecular nature of this compound.
ISSN:0038-1098
1879-2766
DOI:10.1016/0038-1098(86)90194-8