ETA-PAIRING AS A MECHANISM OF SUPERCONDUCTIVITY IN MODELS OF STRONGLY CORRELATED ELECTRONS

被引：125

作者：

DEBOER, J

KOREPIN, VE

SCHADSCHNEIDER, A

机构：

[1] Institute for Theoretical Physics, State University of New York at Stony Brook, Stony Brook

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.74.789

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We consider extended versions of the Hubbard model which contain additional interactions between nearest neighbors. 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 exists even for moderate repulsive values of the Hubbard interaction U. © 1995 The American Physical Society.

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页码：789 / 792

页数：4

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