REALIZATION OF A SPIN LIQUID IN A 2-DIMENSIONAL QUANTUM ANTIFERROMAGNET

被引：51

作者：

PAROLA, A ^{[1
]}

SORELLA, S ^{[1
]}

ZHONG, QF ^{[1
]}

机构：

[1] SCUOLA INT SUPER STUDI AVANZATI,I-34014 TRIESTE,ITALY

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 26期

关键词：

D O I：

10.1103/PhysRevLett.71.4393

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The ground state properties of the two dimensional spatially anisotropic Heisenberg model are investigated by use of field theory mappings, spin-wave expansion, and Lanczos technique. Evidence for a disorder transition induced by anisotropy at about J(y)/J(x) < 0.1 is shown. We argue that the disordered phase is gapless and its long wavelength properties can be interpreted in terms of decoupled one dimensional chains.

引用

页码：4393 / 4396

页数：4