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Raman Scattering of Light in Antiferromagnetic Chromium
Author(s) -
Cuden C. B.,
Mota R.
Publication year - 1981
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.2221030103
Subject(s) - raman scattering , x ray raman scattering , antiferromagnetism , scattering , physics , light scattering , coherence (philosophical gambling strategy) , atomic physics , photon energy , condensed matter physics , photon , mott scattering , perturbation theory (quantum mechanics) , raman spectroscopy , quantum mechanics , small angle neutron scattering , neutron scattering
Raman scattering of light in antiferromagnetic chromium is discussed in terms of conventional second‐order time‐dependent perturbation theory. The scattering cross‐section as a function of frequency and temperature is calculated for the scattering of light by one‐electron, one‐hole, and electron‐hole pair excitations. It is shown that the unphysical divergence of the scattering crosssection for the photon energy transfer equal twice the antiferromagnetic energy gap found by Kwok, Woo, and Jha is removed by taking properly into account the statistical coherence factors.