ANTIFERROMAGNETISM IN THE 2-DIMENSIONAL INFINITE-U HUBBARD-MODEL

被引：3

作者：

SONG, Z

SHEN, H

机构：

[1] Department of Physics, Nankai University

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.47.14576

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The ground-state properties of the two-dimensional infinite- U Hubbard model with 1/4 hole concentration are studied with degenerate perturbation theory and an exact diagonalization method for a (2 X 4)-site cluster. We find that on a 2 X 4 lattice, the original model could be mapped into a spin-3/2 antiferromagnetic Heisenberg model for the case of two holes.

引用

页码：14576 / 14579

页数：4

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