Normal and superconducting state in the presence of forward electron-phonon and impurity scattering

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dc.creatorDanylenko, O. V.
dc.creatorDolgov, O. V.
dc.creatorKulic, M. L.
dc.creatorOudovenko, V.
dc.date1997-10-22
dc.date.accessioned2026-07-07T03:09:18Z
dc.date.available2026-07-07T03:09:18Z
dc.descriptionImpurities with the pronounced forward scattering (FS impurities) change analytical properties of the quasiparticle Green's function substantially compared to the isotropic scattering. By assuming that the superconducting pairing is due to the forward E-P scattering (FEP pairing) it is shown that the critical temperature of clean systems T_{c0} depends linearly on the E-P coupling constant λand the isotope effect αis small. The FS impurities make α=1/2 in the dirty limit and affect in the same way the s- and d-wave FEP pairing. The FS impurities are pair-weakening in both pairing channels. The usual isotropic impurity scattering is pair-weakening for the s-wave and pair-breaking for the d-wave FEP pairing.
dc.description10 pages with 1 PS figure, RevTex, submitted to Phys. Rev. B. Rapid Communication
dc.identifierhttps://arxiv.org/abs/cond-mat/9710234
dc.identifierhttp://arxiv.org/abs/cond-mat/9710234
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/27832
dc.subjectSuperconductivity
dc.titleNormal and superconducting state in the presence of forward electron-phonon and impurity scattering
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