Fano Resonance in a Coupled Electron-Phonon System |
| L.A. Falkovsky Landau Institute for Theoretical Physics, Russian Academy of Sciences, Kosygina 2, 117 334 Moscow, Russia and S. Klama Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznań, Poland |
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| Raman light scattering with excitation of electron-hole continuum and a phonon is investigated theoretically. The effect of a surface and 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 340 cm-1 resonance line in superconducting YBaCuO are estimated by comparing with experimental data. |
| DOI: 10.12693/APhysPolA.91.347 PACS numbers: 73.20.Mf, 74.25.-q, 78.30.-j |