Neutron-scattering study of low-energy excitations in some organic glass formers

The results of inelastic incoherent neutron-scattering measurements of solid phases of isopentyl cyanobiphenyl (5*CB), isooctyloxy cyanobiphenyl (8*OCB), cyclooctanol and glycerol are presented. Low-energy excitations in glassy phases were observed both as a boson peak in direct geometry measurement...

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Published inPhysica. B, Condensed matter Vol. 371; no. 2; pp. 249 - 256
Main Authors Mayer, J., Krawczyk, J., Massalska-Arodź, M., Natkaniec, I., Janik, J.A., Steinsvoll, O.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.01.2006
Subjects
Glassy state
Neutron inelastic scattering
Organic compounds
78.70.Nx
64.70.Rf
Neutron inelastic scattering
61.66.Hq
Glassy state
Organic compounds
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Summary:The results of inelastic incoherent neutron-scattering measurements of solid phases of isopentyl cyanobiphenyl (5*CB), isooctyloxy cyanobiphenyl (8*OCB), cyclooctanol and glycerol are presented. Low-energy excitations in glassy phases were observed both as a boson peak in direct geometry measurements and as an excess density of states in inverted geometry experiments. The mechanism of the phenomenon is suggested.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0921-4526
1873-2135
DOI:10.1016/j.physb.2005.10.116