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

Mayer, J. , Krawczyka, J. , Massalska-Arodz, M. , Natkaniec, I. , Janik, J.A. , Steinsvoll, O.
Physica B. Condensed matter, Vol. 371, no. 2 (2006), 249-256
Publ. year
2006
Publ. type
article
Abstract
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. (Elsevier)
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