Published January 1, 2007
| Version v1
Journal article
Boson peak and hybridization of acoustic modes with vibrations of nanometric heterogeneities in glasses
Creators
- 1. Laboratoire de Physicochimie des Materiaux Luminescents, Universite Lyon 1, UMR-CNRS 5620, 43 boulevard du 11 Novembre, 69622 Villeurbanne Cedex (France)
- 2. Laboratoire de Recherche sur la Reactivite des Solides, Universite de Bourgogne and CNRS, Boite Postale 47870, 21078 Dijon Cedex (France)
Description
The low-frequency dynamics in glasses is compared with that in icosahedral quasicrystals. For both arrangements of matter, the existence of nanometric heterogeneities, implying the existence of a nanometric inhomogeneous elastic network, is expected to play a crucial role. Thanks to this comparison, mostly based on inelastic x-ray (neutron) scattering data, it is proposed that the excess of vibrational density of states observed in both materials is due to the hybridization of longitudinal and transverse acoustic modes with modes localized around the heterogeneities
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review. B, Condensed Matter and Materials Physics
- Journal Volume
- 75
- Journal Issue
- 2
- Journal Page Range
- p. 024201-024201.9
- ISSN
- 1098-0121
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39006469
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
- Descriptors DEI
- BOSONS; COMPARATIVE EVALUATIONS; DENSITY; ELASTICITY; GLASS; HYBRIDIZATION; NEUTRON DIFFRACTION; PEAKS; X RADIATION
- Descriptors DEC
- COHERENT SCATTERING; DIFFRACTION; ELECTROMAGNETIC RADIATION; EVALUATION; IONIZING RADIATIONS; MECHANICAL PROPERTIES; PHYSICAL PROPERTIES; RADIATIONS; SCATTERING
Optional Information
- Notes
- (c) 2007 The American Physical Society