POSSIBILITY OF A SUBLATTICE ORDER OF THE KAGOME ANTIFERROMAGNET

被引：16

作者：

ASAKAWA, H

SUZUKI, M

机构：

[1] Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo

来源：

PHYSICA A | 1994年 / 205卷 / 04期

关键词：

D O I：

10.1016/0378-4371(94)90230-5

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The properties of the ground state and the low-lying states of the antiferromagnetic Heisenberg model on the kagome lattice are discussed by an effective linear-spin-wave scheme. A novel scheme is introduced in the present paper. By using this scheme, the staggered magnetization of one of the sublattices and the ground-state energy are evaluated, and a finite positive value of the staggered magnetization is obtained. Then a physical picture of the ground state and the low-lying states is suggested.

引用

页码：687 / 701

页数：15

共 16 条

[1]

[Anonymous], 1990, PHYS REV B

[2] PERTURBATIONAL EXPANSION OF THE ANTIFERROMAGNETIC HEISENBERG-MODEL WITH S = 1 AROUND THE TRIMER STATE ON THE KAGOME LATTICE [J].