Eliashberg equations in strong-correlation systems

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Abstract

Eliashberg equations with a pair coupling potential constructed from screened fermion-fermion interactions arising from the strong-correlation energy U are solved to obtain the superconducting gap, the quasiparticle density of states in the superconducting state, and the transition temperature as a function of the band parameters in strongly correlated electron materials. This analysis allows us to establish the conditions of the electronic structure for obtaining coupling and superconductivity in these materials.
Original languageEnglish
Article number014
Pages (from-to)4929-4936
JournalJournal of Physics: Condensed Matter
Volume6
DOIs
Publication statusPublished - 1 Jan 1994

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