Spin Bose-glass phase in bilayer quantum Hall systems at v=2

被引：50

作者：

Demler, E ^{[1
]}

Das Sarma, S

机构：

[1] Univ Calif Santa Barbara, Inst Theoret Phys, Santa Barbara, CA 93106 USA

[2] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.82.3895

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We develop an effective spin theory to describe magnetic properties of the nu = 2 quantum Hall bilayer systems. In the absence of disorder this theory agrees with the microscopic Hartree-Fock calculations, and for finite disorder it predicts the existence of a novel spin Bose-glass phase. The Bose glass is characterized by the presence of domains of canted antiferromagnetic phase with zero average antiferromagnetic order and short range correlations. It has infinite antiferromagnetic transverse susceptibility and finite longitudinal spin susceptibility. Transition from the canted antiferromagnetic phase to the spin Bose-glass phase is characterized by a universal value of the spin conductance.

引用

页码：3895 / 3898

页数：4

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