COMPETITION BETWEEN SINGLET FORMATION AND MAGNETIC-ORDERING IN ONE-DIMENSIONAL SPIN SYSTEMS

被引：133

作者：

STRONG, SP ^{[1
]}

MILLIS, AJ ^{[1
]}

机构：

[1] AT&T BELL LABS,MURRAY HILL,NJ 07974

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.69.2419

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We use mappings onto soluble models and Abelian bosonization to determine the phase diagram and correlation functions of a model of two coupled spin chains. We find quantum disordered singlet phases and magnetic phases and determine the phase boundaries, universality classes of transitions, and correlation functions. We believe our model captures the essential physics of the interplay between the Kondo effect and magnetic ordering, which may be important for the heavy fermion materials.

引用

页码：2419 / 2422

页数：4

共 22 条

[1]

Affleck I., 1989, FIELDS STRINGS CRITI

[2]

Doniach S., 1987, Theoretical and Experimental Aspects of Valence Fluctuations. Proceedings of the Fifth International Conference on Valence Fluctuations, P179

[3] KONDO LATTICE AND WEAK ANTIFERROMAGNETISM [J].