Journal Article

PreJuSER-57073

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Dynamics of a hydrogenated silica xerogel: a neutron scattering study

Fontana, A. ; Orsingher, L. ; Rossi, F. ; Buchenau, U.FZJ*

2006
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/7686  doi:10.1103/PhysRevB.74.172304

Abstract: Neutron scattering measurements of a hydrogenated vitreous silica (or xerogel) sample reveal an unexpectedly high mean-square displacement of the silanol hydrogen atoms at 150 and 300 K. At 150 K, the spectrum mimics the boson peak of vitreous silica. The finding suggests a large local displacement of the boson peak modes at the breaking points of the continuous random network.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Research Program(s):

1. Kondensierte Materie (P54)
2. Großgeräte für die Forschung mit Photonen, Neutronen und Ionen (PNI) (P55)

Appears in the scientific report 2006
Notes: Nachtrag

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