Mechanism of SuperconductivityNo Access

CRUCIAL ROLE OF THE COULOMB INTERACTION IN HTSC MECHANISM

E. A. PASHITSKII

Institute of Physics, National Academy of Sciences of Ukraine, 46 Nauki Ave., Kiev, 03028, Ukraine

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and

V. I. PENTEGOV

Institute of Physics, National Academy of Sciences of Ukraine, 46 Nauki Ave., Kiev, 03028, Ukraine

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https://doi.org/10.1142/S0217979205028025Cited by:1 (Source: Crossref)

Abstract

We present results of numerical calculations emphasizing the central role of the Coulomb interaction in the mechanism of d-wave Cooper pairing in layered cuprate metal-oxides. We demonstrate that many-particle Coulomb correlation described by the Coulomb vertex function Γ substantially enhances the effective electron-electron attraction in the d-wave Cooper-pairing channel in these compounds. Such a "Coulomb" mechanism of anisotropic Cooper pairing may provide high superconducting transition critical temperatures (T_c⩾100 K) for optimum-doped cuprates.

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