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Electron and hole superconductivity in the model of local pairs near half filling

Authors
Journal
Physica C Superconductivity
0921-4534
Publisher
Elsevier
Publication Date
Identifiers
DOI: 10.1016/0921-4534(91)90995-b

Abstract

Abstract There are obtained analytical expressions of the equilibrium lines on the phase diagram of the CuO plane system with a strong electron-phonon coupling. The equivalence of the effective Hamiltonian to the hard-core bosons is derived, and it is shown that the SC exists due to the fluctuation of the oxygen valences.

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