Universal form of the low-energy (2 to 10mev) vibrational spectrum of glasses

V. K. Malinovsky; V. N. Novikov; A. P. Sokolov; P. P. Parshin; M. G. Zemlyanov

doi:10.1209/0295-5075/11/1/008

Universal form of the low-energy (2 to 10mev) vibrational spectrum of glasses

V. K. Malinovsky, V. N. Novikov, A. P. Sokolov, P. P. Parshin, M. G. Zemlyanov

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Abstract

By means of inelastic cold neutron scattering the density of vibrational states (DVS) has been determined for a series of vitreous materials: SOz, As2& and metallic glass Mg To Znso. In the low-energy range of the spectrum (E - (2 i 10) meV) for these materials DVS reveals a universal, but non-Debye form. The data obtained are compared to different models. A comparison with the Raman scattering data provides the spectral dependence for the coupling of the light to the vibrational excitations.

Original language	English
Pages (from-to)	43-47
Number of pages	5
Journal	EPL
Volume	11
Issue number	1
DOIs	https://doi.org/10.1209/0295-5075/11/1/008
State	Published - Jan 1 1990
Externally published	Yes

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AU - Novikov, V. N.

AU - Sokolov, A. P.

AU - Parshin, P. P.

AU - Zemlyanov, M. G.

PY - 1990/1/1

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AB - By means of inelastic cold neutron scattering the density of vibrational states (DVS) has been determined for a series of vitreous materials: SOz, As2& and metallic glass Mg To Znso. In the low-energy range of the spectrum (E - (2 i 10) meV) for these materials DVS reveals a universal, but non-Debye form. The data obtained are compared to different models. A comparison with the Raman scattering data provides the spectral dependence for the coupling of the light to the vibrational excitations.

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Universal form of the low-energy (2 to 10mev) vibrational spectrum of glasses

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