Magnetization process of the S=1 and 1/2 uniform and distorted kagome Heisenberg antiferromagnets

被引：111

作者：

Hida, K ^{[1
]}

机构：

[1] Saitama Univ, Fac Sci, Dept Phys, Urawa, Saitama 3388570, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2001年 / 70卷 / 12期

关键词：

kagome Heisenberg antiferromagnet; numerical diagonalization; magnetization plateau;

D O I：

10.1143/JPSJ.70.3673

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The magnetization process of the S = I and 1/2 kagome Heisenberg antiferromagnet is studied by means of the numerical exact diagonalization method. It is found that the magnetization curve at zero temperature has a plateau at 1/3 of the full magnetization. In the presence of root3 x root3 lattice distortion. this plateau is enhanced and eventually the ferrimagnetic state is realized. There also appear the minor plateaux above the main plateau. The physical origin of these phenomena is discussed.

引用

页码：3673 / 3677

页数：5

共 18 条

[1] VARIABLE MAGNETIC-INTERACTIONS IN AN ORGANIC RADICAL SYSTEM OF (M-N-METHYLPYRIDINIUM ALPHA-NITRONYL NITROXIDE).X- - A POSSIBLE KAGOME ANTIFERROMAGNET [J].