Phase transition in the ν=2 bilayer quantum hall state

被引：111

作者：

Sawada, A ^{[1
]}

Ezawa, ZF

Ohno, H

Horikoshi, Y

Ohno, Y

Kishimoto, S

Matsukura, F

Yasumoto, M

Urayama, A

机构：

[1] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan

[2] Tohoku Univ, Elect Commun Res Inst, Sendai, Miyagi 9808577, Japan

[3] Waseda Univ, Sch Sci & Engn, Tokyo 1698555, Japan

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.80.4534

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The width of the Hall plateau and the activation energy were measured in the bilayer quantum Hall state at filling factors nu = 2, 1, and 2/3 by changing the total electron density and the density ratio in the two quantum wells. Their behaviors are remarkably different. The nu = 1 state is found to be stable over all measured range of the density difference. The nu = 2/3 state is stable only around the balanced point. The nu = 2 state shows a phase transition between these two types of states as the electron density is changed.

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页码：4534 / 4537

页数：4

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