HEXAGONAL ANTIFERROMAGNETS IN STRONG MAGNETIC-FIELD - MAPPING ONTO BOSE-CONDENSATION OF LOW-DENSITY BOSE-GAS

被引：48

作者：

NIKUNI, T

SHIBA, H

机构：

[1] Department of Physics, Tokyo Institute of Technology, Oh-okayama

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1995年 / 64卷 / 09期

关键词：

HEXAGONAL ANTIFERROMAGNETS; NONTRIVIAL DEGENERACY; QUANTUM FLUCTUATIONS; LOW-DENSITY BOSE GAS; BOSE CONDENSATION; LOW-DENSITY EXPANSION;

D O I：

10.1143/JPSJ.64.3471

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The ground-state spin structures of hexagonal antiferromagnets such as CsCuCl3 in a strong magnetic field are studied by mapping the problem onto an equivalent Bose-gas problem. The spin system close to the saturation is transformed to a low-density Bose gas which has two minima in the single-particle energy band. The low-density expansion is applied to the Bose system and the ground-state spin structure just below saturation field is determined.

引用

页码：3471 / 3483

页数：13

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