Anisotropic Heisenberg chain in coexisting transverse and longitudinal magnetic fields

被引：37

作者：

Dmitriev, DV ^{[1
]}

Krivnov, VY ^{[1
]}

机构：

[1] Russian Acad Sci, Joint Inst Chem Phys, Moscow 117977, Russia

来源：

PHYSICAL REVIEW B | 2004年 / 70卷 / 14期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1103/PhysRevB.70.144414

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The one-dimensional spin-1/2 XXZ model in a mixed transverse and longitudinal magnetic field is studied. Using the specially developed version of the mean-field approximation the order-disorder transition induced by the magnetic field is investigated. The ground-state phase diagram is obtained. The behavior of the model in the low transverse field is studied on the basis of conformal field theory. The relevance of our results to the observed phase transition in the quasi-one-dimensional antiferromagnet Cs2CoCl4 is discussed.

引用

页码：144414 / 1

页数：10

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