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Resonant Raman scattering from a spin density wave insulator
Author(s) -
Kampf A. P.,
Brenig W.
Publication year - 1992
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.19925040307
Subject(s) - physics , condensed matter physics , raman scattering , antiferromagnetism , x ray raman scattering , scattering , insulator (electricity) , cross section (physics) , spin density , spin (aerodynamics) , raman spectroscopy , quantum mechanics , optoelectronics , thermodynamics
We present a calculation of the electronic Raman cross section for the scattering of light across the energy gap of an antiferromagnetic insulator. The antiferromagnet is described in terms of a spin density wave state for the Hubbard model at half filling. We consider the coupling of the light to the current density and the inverse mass tensor on equal footing. A comparison of the cross section for different scattering geometries is given.