Evidence of nonlocal breakdown of the integer quantum hall effect

被引：90
|
作者：
Komiyama, S [1 ]
Kawaguchi, Y [1 ]
Osada, T [1 ]
Shiraki, Y [1 ]
机构：
[1] UNIV TOKYO,ADV SCI & TECHNOL RES CTR,MEGURO KU,TOKYO,JAPAN
来源：
PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 03期
关键词：
D O I：
10.1103/PhysRevLett.77.558
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Current induced breakdown of the integer quantum Hall effect (QHE) is studied in GaAs/AlGaAs single heterostructure Hall bars at T = 1.6-4.2 K and B = 2-6 T (v = 2, 4, and 6). The QHE breakdown is absent over a macroscopic region in the two-dimensional electron gas channel on the side of the electron-injecting corner of the Hall bars. The observed nonlocal nature suggests that bootstrap-type electron heating is relevant to the QHE breakdown.
引用
收藏
页码：558 / 561
页数：4
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