title: Influence of pressure on quasielastic scattering in glasses: relationship to the boson peak.
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.
authors.affiliation: Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909, USA.
authors.forename: L
authors.initials: L
authors.lastname: Hong
authors.forename: B
authors.initials: B
authors.lastname: Begen
authors.forename: A
authors.initials: A
authors.lastname: Kisliuk
authors.forename: S
authors.initials: S
authors.lastname: Pawlus
authors.forename: M
authors.initials: M
authors.lastname: Paluch
authors.forename: A P
authors.initials: AP
authors.lastname: Sokolov