Anisotropic antiferromagnetic spin chains in a transverse field: Reentrant behavior of the staggered magnetization

被引：39

作者：

Hieida, Y ^{[1
]}

Okunishi, K

Akutsu, Y

机构：

[1] Kobe Univ, Fac Sci, Dept Phys, Kobe, Hyogo 6578501, Japan

[2] Niigata Univ, Fac Sci, Dept Phys, Niigata 9502181, Japan

[3] Osaka Univ, Grad Sch Sci, Dept Phys, Osaka 5600043, Japan

来源：

PHYSICAL REVIEW B | 2001年 / 64卷 / 22期

关键词：

D O I：

10.1103/PhysRevB.64.224422

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigate one-dimensional S = 1/2 and S=1 antiferromagnetic quantum-spin chains with easy-axis anisotropies in a transverse field. We calculate both the uniform magnetization and the staggered magnetization, using a variant of the density-matrix renormalization-group method. We find that the staggered magnetizations exhibit reentrant behavior as functions of the transverse field, where the competition between the classical Neel order and the quantum fluctuations plays an important role. We also discuss the critical behavior associated with the staggered magnetizations.

引用

页码：2244221 / 2244226

页数：6

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