Double-layer quantum Hall antiferromagnetism at filling fraction v=2/m where m is an odd integer

被引：99

作者：

DasSarma, S ^{[1
]}

Sachdev, S ^{[1
]}

Zheng, L ^{[1
]}

机构：

[1] YALE UNIV,DEPT PHYS,NEW HAVEN,CT 06520

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.79.917

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A low energy action for double-layer quantum Hall systems at filling fractions v = 2/m (where m is an odd integer) is introduced. Interlayer antiferromagnetic exchange induces a phase with canted spin order, as well as a spin-singlet phase. Universal properties of zero and finite temperature transitions are obtained. We compute the critical temperature at which the canted order vanishes in a Kosterlitz-Thouless transition. Implications for recent light scattering experiments at v = 2 are noted.

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页码：917 / 920

页数：4

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