Raman continuum in high-$T_c$ superconductors

Details Raman continuum in high-$T_c$ superconductors Raman continuum in high-$T_c$ superconductors

1996-01-29

arxiv.org/abs/cond-mat/9601141v1

Physics

Condensed Matter

Two figures attached with latex file, Revtex style, 10 pages length, To appear in PhysicaB (1996) (Presented in the Internatio

Scientific paper

10.1016/0921-4526(96)00168-8

Experimentally, Raman continuum for $A_g$ and $B_g$ geometry exhibits peaks far apart from each other (about 80 to 150 $\rm cm^{-1}$) in frequency. The former is insensitive to doping over a small range where $T_c$ does not vary much whereas the latter shifts towards higher frequencies. We calculate the electronic Raman scattering intensities using the `modified spin bag model'. We show that the calculated results have natural explanation to the observed anamolous peak separation and peculiar doping dependence.

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