Electronic Inhomogeneities and Pairing from Unscreened Interactions in High-Tc Superconductors
作者： A. Bill , V. Hizhnyakov , G. Seibold , E. Sigmund
DOI: 10.1007/978-3-540-71023-3_11
关键词:
摘要: The presence of electronic inhomogeneities and layering strongly reduces the screening electron-ion interaction in high-temperature superconductors. This implies existence a non-totally screened long-range contribution to electron-lattice coupling opens an additional channel for formation Cooper pairs. We calculate superconducting order parameter taking into account a) short-range parts b) Coulomb repulsion between charge-carriers. show that whereas determines anisotropy parameter, interactions determine its symmetry.
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