Magnetization plateau in the S=1/2 XXZ spin chain with period 3 magnetic field

被引：6
|
作者：
Inoue, H [1 ]
机构：
[1] Kyushu Univ, Dept Phys, Higashi Ku, Fukuoka 8128581, Japan
来源：
PHYSICS LETTERS A | 2000年 / 270卷 / 06期
关键词：
D O I：
10.1016/S0375-9601(00)00309-1
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We investigate the S = +/- 1/2 XXZ spin chain with period 3 magnetic field term. The magnetization plateau-nonplateau transition at m = +/- 1/6 is expected to be of the Berezinski-Kosterlitz-Thouless type from the bosonization argument. By examining the level crossing of low-lying excitations numerically, we precisely determine the plateau phase diagram. (C) 2000 Published by Elsevier Science.
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页码：359 / 366
页数：8
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