QUANTUM SPIN NEMATICS - MOMENT-FREE MAGNETISM

被引：122

作者：

CHANDRA, P

COLEMAN, P

机构：

[1] EXXON RES & ENGN CO,CORP RES SCI LABS,ANNANDALE,NJ 08801

[2] RUTGERS STATE UNIV,SERIN PHYS LAB,PISCATAWAY,NJ 08854

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 66卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.66.100

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Treating antiferromagnetism as a spin superfluid, we discuss the possibility of moment-free magnetism. Specifically, we show that large quantum fluctuations induce an anisotropy in Heisenberg spiral structures, driving a biaxial-uniaxial transitions to a spin nematic; this state is characterized by tensor spin order and a gapless Golstone mode of spin-pair excitations. Experimental signatures and realizations of this phenomena are suggested.

引用

页码：100 / 103

页数：4

共 34 条

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ANDREEV AF, 1984, ZH EKSP TEOR FIZ, V60, P267

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