Spinons in a crossed-chains model of a 2D spin liquid

被引：39

作者：

Starykh, OA ^{[1
]}

Singh, RRP

Levine, GC

机构：

[1] Hofstra Univ, Dept Phys & Astron, Hempstead, NY 11549 USA

[2] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 16期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.88.167203

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using the random phase approximation, we show that a crossed-chains model of spin-1/2 Heisenberg chains with frustrated interchain couplings has a nondimerized spin-liquid ground state in 2D, with deconfined spinons as the elementary excitations. The results are confirmed by a bosonization study, which shows that the system is an example of a "sliding Luttinger liquid." In an external field, the system develops an incommensurate field-induced long-range order with a finite transition temperature.

引用

页码：1672031 / 1672034

页数：4

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