Mixed phases for the t-J model

被引：0
|
作者：
Ercolessi, E
Morandi, G
Pisani, L
Roncaglia, M
机构：
[1] Univ Bologna, Dipartimento Fis, INFM, I-40126 Bologna, Italy
[2] Ist Nazl Fis Nucl, Unita Bologna, I-40126 Bologna, Italy
[3] Univ Camerino, Dipartimento Fis, I-62032 Camerino, Italy
来源：
PHYSICA C | 2000年 / 331卷 / 02期
关键词：
t-J model; RVB states; nonmagnetic states;
D O I：
10.1016/S0921-4534(99)00672-3
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We study the competition between nonmagnetic (dimer or flux) states and short-range antiferromagnetically ordered RVB states in the t-J model and present a finite temperature phase diagram. We show that for a wide range of temperatures and dopings, the stable phase results to be a state in which both the flux and the RVB parameters are nonzero. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：178 / 184
页数：7
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