Effect of densification on the density of vibrational states of glasses

We studied the effect of densification on the vibrational dynamics of a Na(2)FeSi(3)O(8) 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 in...

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Published in:Physical review letters 2006-09, Vol.97 (13), p.135501-135501, Article 135501
Main Authors: Monaco, A, Chumakov, A I, Monaco, G, Crichton, W A, Meyer, A, Comez, L, Fioretto, D, Korecki, J, Rüffer, R
Format: Article
Language:English
Subjects:
DENSITY
GLASS
INELASTIC SCATTERING
IRON COMPOUNDS
MATERIALS SCIENCE
PHASE TRANSFORMATIONS
SILICON OXIDES
SODIUM COMPOUNDS
VIBRATIONAL STATES
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cited_by cdi_FETCH-LOGICAL-c453t-1e74bbce6a526fff6bbe1bb178a7220f45866d81de8156816d5d899574bd30ec3
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container_end_page 135501
container_issue 13
container_start_page 135501
container_title Physical review letters
container_volume 97
creator Monaco, A
Chumakov, A I
Monaco, G
Crichton, W A
Meyer, A
Comez, L
Fioretto, D
Korecki, J
Rüffer, R
description We studied the effect of densification on the vibrational dynamics of a Na(2)FeSi(3)O(8) 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.
doi_str_mv 10.1103/physrevlett.97.135501
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subjects DENSITY
GLASS
INELASTIC SCATTERING
IRON COMPOUNDS
MATERIALS SCIENCE
PHASE TRANSFORMATIONS
SILICON OXIDES
SODIUM COMPOUNDS
VIBRATIONAL STATES
title Effect of densification on the density of vibrational states of glasses
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