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VOLUME 61 | ISSUE 10 | PAGE 865
Electron Raman scattering in YBa2Cu3O crystals
A detailed study has been made of electron scattering of light by YBa2Cu3065 single crystals with a sharp superconducting transition at Tc<=*53 K. In the superconducting state, the spectral density of the electron continuum undergoes a restructuring at frequencies ω:£250 cm-1 in the (x'x' polarization), and a 2Δ peak arises at ω«*200 cm-1. In crossed polarizations (x'y') the spectrum has a low intensity, and it does not undergo any significant changes at temperatures below Tc, in contrast with the spectrum of YBa2Cu307. © 1995 American Institute of Physics.

Permission given by American Institute of Physics is appreciated.