RAYLEIGH AND MANDELSTAM-BRILLOUIN LIGHT SCATTERING IN CHALCOGENIDE GLASSES OF THE [.sub.100-x] SYSTEM

Rayleigh and Mandelstam-Brillouin light scattering has been investigated in chalcogenide glasses of the Ge-Sb-S system along the [(S[b.sub.2][S.sub.3]).sub.x] [(Ge[S.sub.2]).sub.100-x] set(x = 0-50 mol %). Propagation velocity of the longitudinal hypersound wave, the high-frequency longitudinal elas...

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Bibliographic Details
Published in:	Journal of applied spectroscopy Vol. 84; no. 4; pp. 567 - 572
Main Authors:	Shpak, I.I, Yevych, R.M, Shpak, A.I, Perechinskii, S.I, Bletskan, D.I, Vysochanskii, Yu.M
Format:	Journal Article
Language:	English
Published:	Springer 01-09-2017
Subjects:	Metallic glasses
Online Access:	Get full text
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Summary:	Rayleigh and Mandelstam-Brillouin light scattering has been investigated in chalcogenide glasses of the Ge-Sb-S system along the [(S[b.sub.2][S.sub.3]).sub.x] [(Ge[S.sub.2]).sub.100-x] set(x = 0-50 mol %). Propagation velocity of the longitudinal hypersound wave, the high-frequency longitudinal elastic modulus, the extinction coefficient at the wavelength [lambda] = 0.6328 microns, and the Landau-Placzek ratio are determined. The Landau-Placzek ratio for the glassy alloys of the Ge-Sb-S system depends strongly on the average coordination number and becomes maximal at Z = 2.67.
ISSN:	0021-9037 1573-8647
DOI:	10.1007/s10812-017-0512-5