Article
Role of low-frequency vibrations on sound propagation in glasses at intermediate temperature
Author/s | Criado Vega, Alberto
Jiménez Ruiz, M. Cabrillo, C. Bermejo, F. J. Grimsditch, M. Fischer, H. E. Bennington, S. M. Eccleston, R. S. |
Department | Universidad de Sevilla. Departamento de Física de la Materia Condensada |
Publication Date | 2000 |
Deposit Date | 2017-05-08 |
Published in |
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Abstract | We report measurements of the temperature dependence of the sound attenuation and the fractional change in sound velocity for the glass (G) and orientational-glass (OG) phases of polymorphic ethanol. Strikingly similar ... We report measurements of the temperature dependence of the sound attenuation and the fractional change in sound velocity for the glass (G) and orientational-glass (OG) phases of polymorphic ethanol. Strikingly similar behaviors are found for both phases despite the OG's underlying crystal (bcc) lattice. Such similarity, which is also revealed in dielectric spectroscopy and inelastic neutron scattering measurements, suggests whole molecule small-angle librations as a common microscopic origin for a wide variety of "glassy" phenomena. |
Funding agencies | Dirección General de Investigación Científica y Técnica (DGICYT). España |
Project ID. | PB95-0075-C03-01 |
Citation | Criado Vega, A., Jiménez Ruiz, M., Cabrillo, C., Bermejo, F.J., Grimsditch, M., Fischer, H.E.,...,Eccleston, R.S. (2000). Role of low-frequency vibrations on sound propagation in glasses at intermediate temperature. Physical Review B - Condensed Matter and Materials Physics, 61 (13), 8778-8783. |
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