CHIRAL, NEMATIC, AND DIMER STATES IN QUANTUM SPIN CHAINS

被引：218

作者：

CHUBUKOV, AV ^{[1
]}

机构：

[1] ACAD SCI USSR, INST PHYS PROBLEMS, MOSCOW 117334, USSR

来源：

PHYSICAL REVIEW B | 1991年 / 44卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.44.4693

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A phase diagram of the one-dimensional S = 1/2 frustrated ferromagnetic Heisenberg model in a magnetic field is studied via a bosonization technique. Besides the ferromagnetic phase, two different nematiclike phases with additional symmetry breaking of reflections about a bond or about a site are mapped out. The prediction is made of possible fourfold degeneracy of a ground state at H = 0 for sufficiently strong second-neighbor coupling.

引用

页码：4693 / 4696

页数：4

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