Low-energy anomalies of vibrational spectra and medium range order in glasses

A.P. Sokolov, A. Kisliuk, M. Soltwisch and D. Quitmann

Physica A: Statistical Mechanics and its Applications, 1993, vol. 201, issue 1, 295-299

Abstract: The low-frequency Raman spectra of glasses were compared with heat capacity data. The comparison shows that full vibrational density of states g(ω) appears in the Raman spectra and that the so-called boson peak is connected with peculiarities of g(ω), but not with the light to vibrations coupling coefficient. A correlation of the boson peak frequency and the width of first sharp diffraction peak is discussed. This correlation supports the idea that the low-energy vibrational anomalies in glasses are defined by some characteristic length of the vitreous structure.

Date: 1993
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:201:y:1993:i:1:p:295-299

DOI: 10.1016/0378-4371(93)90425-4

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