Anomalous normal state electronic Raman scattering continuum in YBCO: Inadequacy of frequency-dependent collision-rate models

We calculate the intraband electronic Raman scattering cross section from charge density fluctuations of holes in YBCO and the real part of the transverse electromagnetic conductivity in the normal state, using phenomenological linear frequency-dependent collision rates ω c(ω, T). Whereas there is a...

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Bibliographic Details
Published in:Physica. C, Superconductivity Superconductivity, 1992-10, Vol.201 (1), p.21-26
Main Authors: Press, M.R., Jha, Sudhanshu S.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Infrared and raman spectra and scattering
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Physics
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Summary:We calculate the intraband electronic Raman scattering cross section from charge density fluctuations of holes in YBCO and the real part of the transverse electromagnetic conductivity in the normal state, using phenomenological linear frequency-dependent collision rates ω c(ω, T). Whereas there is a general agreement with the experimental data on infrared conductivity, we are unable to obtain the extent of flatness of the electronic Raman continuum as observed in several experiments.
ISSN:0921-4534
1873-2143
DOI:10.1016/0921-4534(92)90099-X