Influence of pressure on quasielastic scattering in glasses: Relationship to the Boson peak

L. Hong; B. Begen; A. Kisliuk; S. Pawlus; M. Paluch; A. P. Sokolov

doi:10.1103/PhysRevLett.102.145502

Influence of pressure on quasielastic scattering in glasses: Relationship to the Boson peak

L. Hong, B. Begen, A. Kisliuk, S. Pawlus, M. Paluch, A. P. Sokolov

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Abstract

We report unexpectedly strong variations in the quasielastic scattering (QES) intensity in glasses under pressure. Analysis of the data reveals strong correlations between pressure-induced changes in the QES intensity and the intensity of the boson peak. This observation emphasizes a direct relationship between these two components of the fast dynamics. In addition, we observe changes of the QES spectral shape that can be interpreted as pressure-induced variations in the underlying energy landscape.

Original language	English
Article number	145502
Journal	Physical Review Letters
Volume	102
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevLett.102.145502
State	Published - Apr 6 2009
Externally published	Yes

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10.1103/PhysRevLett.102.145502

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abstract = "We report unexpectedly strong variations in the quasielastic scattering (QES) intensity in glasses under pressure. Analysis of the data reveals strong correlations between pressure-induced changes in the QES intensity and the intensity of the boson peak. This observation emphasizes a direct relationship between these two components of the fast dynamics. In addition, we observe changes of the QES spectral shape that can be interpreted as pressure-induced variations in the underlying energy landscape.",

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AU - Paluch, M.

AU - Sokolov, A. P.

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AB - We report unexpectedly strong variations in the quasielastic scattering (QES) intensity in glasses under pressure. Analysis of the data reveals strong correlations between pressure-induced changes in the QES intensity and the intensity of the boson peak. This observation emphasizes a direct relationship between these two components of the fast dynamics. In addition, we observe changes of the QES spectral shape that can be interpreted as pressure-induced variations in the underlying energy landscape.

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Influence of pressure on quasielastic scattering in glasses: Relationship to the Boson peak

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