Magnetic order and moment distribution in doped spin-chain systems

被引：6

作者：

Eggert, Sebastian ^{[1
]}

Affleck, Ian

机构：

[1] Chalmers, Inst Theoret Phys, S-41296 Gothenburg, Sweden

[2] Univ British Columbia, Dept Phys, Vancouver, BC V6T 121, Canada

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 272卷

关键词：

spin chain; antiferromagnetic order; impurity;

D O I：

10.1016/j.jmmm.2003.12.1088

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We consider the effect of doping on the magnetic order in quasi one-dimensional (1D) antiferromagnets. First the detailed magnetic response of finite spin-1/2 chains in the presence of a staggered field is determined, which by itself shows an interesting crossover as function of length and field strength. We can then understand the ordering by including an effective coupling between the chains, which results in a Neel-ordered phase at low temperatures, but with a broad distribution of magnetic moments that has to be determined self-consistently. (C) 2004 Elsevier B. V. All rights reserved.

引用

页码：E647 / E648

页数：2

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