PHASE-SEPARATION IN THE T-J MODEL

被引：810

作者：

EMERY, VJ ^{[1
]}

KIVELSON, SA ^{[1
]}

LIN, HQ ^{[1
]}

机构：

[1] UNIV CALIF LOS ANGELES,DEPT PHYS,LOS ANGELES,CA 90024

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.64.475

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

It is shown that, for the t-J model, dilute holes in an antiferromagnet are unstable against phase separation into a hole-rich and a no-hole phase. When the spin-exchange interaction J exceeds a critical value Jc, the hole-rich phase has no electrons. It is proposed that for J slightly less than Jc the hole-rich phase is a low-density superfluid of electron pairs. A brief discussion of phase separation in other related models is given. © 1990 The American Physical Society.

引用

页码：475 / 478

页数：4

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