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Bisoliton Mechanism of High‐Temperature Superconductivity
Author(s) -
Davydov A. S.
Publication year - 1988
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221460223
Subject(s) - superconductivity , condensed matter physics , electron , high temperature superconductivity , singlet state , superconducting transition temperature , ceramic , transition temperature , materials science , physics , atomic physics , excited state , quantum mechanics , composite material
A moderately strong electron–phonon interaction is used to develop a nonlinear bisoliton model of high‐temperature superconductivity in ceramic oxides. The absence of an isotopic effect is explained. The dependence of the critical temperature for a superconducting transition and of the formation of a bisoliton condensate on bisoliton concentration is explained qualitatively. It is shown that at low temperatures electrons with an energy above the critical one come from a metal to a superconductor at equal time intervals only in pairs in a singlet spin state as bisolitons.