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.
引用
收藏
页码：4534 / 4537
页数：4
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