Nonspherical rigid-muffin-tin calculations of electron-phonon coupling in high-Tc perovskites

I. I. Mazin, Sergey Rashkeev, S. Y. Savrasov

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The Hopfield factor (electronic part of the electron-phonon coupling constant) is calculated in the rigid-muffin-tin approximation (RMTA) for several perovskite high-Tc superconductors. Calculations were performed in the conventional spherical approximation and take into account the proper local symmetry. It is shown that the layered perovskite crystal symmetry generally favors strong electron-phonon interaction on the copper sites. We also estimate some non-RMTA effects.

Original languageEnglish
Pages (from-to)366-370
Number of pages5
JournalPhysical Review B
Issue number1
Publication statusPublished - 1 Dec 1990
Externally publishedYes


ASJC Scopus subject areas

  • Condensed Matter Physics

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