NONEQUILIBRIUM POPULATION OF EDGE STATES AND A ROLE OF CONTACTS IN THE QUANTUM HALL REGIME

被引:16
|
作者
KOMIYAMA, S [1 ]
HIRAI, H [1 ]
SASA, S [1 ]
FUJII, T [1 ]
机构
[1] FUJITSU LABS LTD,SEMICOND MAT LAB,ATSUGI 24301,JAPAN
关键词
D O I
10.1016/0039-6028(90)90876-A
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Heterostructure (GaAs/AlGaAs) Hall-bar devices with a short cross gate are studied in a quantum Hall regime. Anomalous longitudinal resistances and deviations of the Hall resistance from quantized values are interpreted as a consequence of non-equilibrium distribution in edge states. The results ar analyzed in terms of properties of contacts. © 1990.
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页码:224 / 228
页数:5
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