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The Model Description of Neutron Scattering by Quasilocal Vibrations and Phonons in Glasses
Author(s) -
Plakida N. M.,
Stamenković S.,
Vujičić G. M.
Publication year - 1987
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221440211
Subject(s) - phonon , physics , inelastic neutron scattering , neutron scattering , neutron , inelastic scattering , scattering , vibration , frame (networking) , nuclear physics , atomic physics , condensed matter physics , quantum mechanics , telecommunications , computer science
In the frame of an appropriate dynamical model of glasses the differential cross sections for inelastic neutron scattering by quasilocal vibrational excitations (QVE) and phonons are evaluated. It is shown that at low energies ( E ≦ 10 meV) these cross sections are of the same order and could explain the corresponding experimental results.