Evidence of stripe formation tendency in t-J model

被引：0
|
作者：
Jiang, YJ [1 ]
Deng, DS
Tao, RB
机构：
[1] Fudan Univ, Dept Phys, Surface Phys Lab, Natl Key Lab, Shanghai 200433, Peoples R China
[2] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
[3] Chinese Ctr Adv Sci & Technol, World Lab, Beijing 100080, Peoples R China
[4] Fudan Univ, Ctr Theoret Phys, Shanghai 200433, Peoples R China
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2002年 / 377卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
t-J model; RVB pairing; slave-boson transformation; stripe phase;
D O I：
10.1016/S0921-4534(01)01120-0
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The d-wave RVB mean field theory for the t-J model is generalized to the inhomogeneous case to incorporate harmonic hole modulation manifestly. Numerical results show that there are a monotonous decrease of ground state energy with the increase of amplitude of modulation. The form of this dependence strongly suggests the existence of a nontrivial stripe phase of t-J model for different t/J, and doping values. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：85 / 88
页数：4
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