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Properties of CsBr Derived from the Phonon Density of States
Author(s) -
Daubeet J.,
Jex H.,
Müllner M.
Publication year - 1973
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.2220570205
Subject(s) - phonon , debye , debye model , inelastic neutron scattering , raman scattering , scattering , inelastic scattering , physics , absorption (acoustics) , condensed matter physics , infrared , phonon scattering , materials science , raman spectroscopy , optics
Detailed calculations are presented for the one‐ and two‐phonon density of states in CsBr. These densities are based on models fitted to phonons determined by inelastic neutron scattering. Most of the 800 phonons are in off‐symmetry directions. The densities and physical properties of CsBr derived from integrals over the frequency distribution are compared with optical measurements (infrared absorption, Raman scattering, infrared absorption from U‐centers) with caloric data (specific heat, frequency moments), and with elastic scattering experiments (Debye‐Waller factors, Debye temperatures).