Solitons and intrinsic localized modes in a one-dimensional antiferromagnetic chain

被引：8

作者：

Li, DJ ^{[1
]}

Mi, XW

Deng, K

Tang, Y

机构：

[1] Jishou Univ, Dept Phys, Jishou 416000, Peoples R China

[2] Xiangtan Univ, Dept Phys, Xiangtan 411105, Peoples R China

来源：

CHINESE PHYSICS | 2006年 / 15卷 / 01期

关键词：

antiferromagnetic chain; Hartree approximation; quantum soliton; quantum intrinsic localized mode;

D O I：

10.1088/1009-1963/15/1/007

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

By use of the Hartree approximation and the method of multiple scales, we investigate quantum solitons and intrinsic localized modes in a. one-dimensional antiferromagnetic chain. It is shown that there exist solitons of two different quantum frequency bands: i.e., magnetic optical solitons and acoustic solitons. At the boundary of the Brillouin zone, these solitons become quantum intrinsic localized modes: their quantum eigenfrequencies are below the bottom of the harmonic optical frequency band and above the top of the harmonic acoustic frequency band.

引用

页码：39 / 44

页数：6

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