94-131 Jan de Boer, Vladimir Korepin,Andreas Schadschneider
Eta-pairing as a mechanism of superconductivity in models of strongly correlated electrons (20K, REVTeX) May 13, 94
Abstract , Paper (src), View paper (auto. generated ps), Index of related papers

Abstract. We consider extended versions of the Hubbard model which contain additional interactions between nearest neighbours. In this letter we show that a large class of these models has a superconducting ground state in arbitrary dimensions. In some special cases we are able to find the complete phase diagram. The superconducting phase exist even for moderate repulsive values of the Hubbard interaction $U$.

Files: 94-131.tex