SPIN GAP IN A GENERALIZED ONE-DIMENSIONAL T-J MODEL

被引：69

作者：

OGATA, M ^{[1
]}

LUCHINI, MU ^{[1
]}

RICE, TM ^{[1
]}

机构：

[1] SWISS FED INST TECHNOL,CH-8092 ZURICH,SWITZERLAND

来源：

PHYSICAL REVIEW B | 1991年 / 44卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.44.12083

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The existence of a spin gap is studied in a generalization of the one-dimensional t-J model. A frustrated next-nearest-neighbor exchange interaction, J', gives rise to a spin gap at half-filling that survives for small doping and arbitrary values of J. Regions of phase separation and divergent superconducting fluctuations are distorted but still present in the extended model.

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页码：12083 / 12085

页数：3

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