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.
引用
收藏
页码：12083 / 12085
页数：3
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