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VOLUME 62 | ISSUE 3 | PAGE 242
Fano resonance in a system of interacting electrons and phonons
Raman scattering with excitation of a phonon is studied under conditions where the scattering is due to the interaction of light with the conduction electrons. The line has the shape of a Fano antiresonance. The screening of the electron-photon coupling and of the deformation potential as a result of the Coulomb interaction of the electrons is taken into account. The parameters of the 350 cm"1 line and the electron-phonon constant in superconducting YBaCuO are estimated by comparing with experiment. © 1995 American Institute of Physics.




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