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Effect of densification on the density of vibrational states of glasses (Articolo in rivista)

Type

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Effect of densification on the density of vibrational states of glasses (Articolo in rivista) (literal)

Anno

Alternative label

Monaco, A; Chumakov, AI; Monaco, G; Crichton, WA; Meyer, A; Comez, L; Fioretto, D; Korecki, J; Ruffer, R (2006)
Effect of densification on the density of vibrational states of glasses
in Physical review letters (Print)
(literal)

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Monaco, A; Chumakov, AI; Monaco, G; Crichton, WA; Meyer, A; Comez, L; Fioretto, D; Korecki, J; Ruffer, R (literal)

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Rivista

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European Synchrotron Radiat Facil, F-38043 Grenoble, France; Tech Univ Munich, Phys Dept E13, D-85747 Garching, Germany; Univ Roma La Sapienza, INFM, CRS SOFT, I-00185 Rome, Italy; Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy; AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, Poland (literal)

Titolo

Effect of densification on the density of vibrational states of glasses (literal)

Abstract

We studied the effect of densification on the vibrational dynamics of a Na2FeSi3O8 glass. The density of vibrational states (DOS) has been measured using nuclear inelastic scattering. The corresponding changes in the microscopic, intermediate-range, and macroscopic properties have also been investigated. The results reveal that, in the absence of local structure transformations, the Debye level and the glass-specific excess of vibrational states above it have the same dependence on density, and the evolution of the DOS is fully described by the transformation of the elastic medium. (literal)

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