Mixed Heisenberg chains .1. The ground-state problem

被引：81

作者：

Niggemann, H

Uimin, G

Zittartz, J

机构：

[1] Inst. für Theoretische Physik, Universität zu Köln, D-50937 Köln

[2] Landau Inst. for Theoretical Physics, Chernogolovka

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1997年 / 9卷 / 42期

关键词：

D O I：

10.1088/0953-8984/9/42/017

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We consider a mechanism for competing interactions in alternating Heisenberg spin chains due to the formation of local spin-singlet pairs. The competition of spin-1 and spin-0 states reveals hidden Ising symmetry of such alternating chains.

引用

页码：9031 / 9042

页数：12

共 17 条

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