QUANTUM HALL CONDUCTION IN QUANTUM WIRES

被引：8
|
作者：
ANDO, T [1 ]
AOKI, H [1 ]
机构：
[1] UNIV TOKYO,DEPT PHYS,TOKYO 113,JAPAN
来源：
PHYSICA B | 1993年 / 184卷 / 1-4期
关键词：
D O I：
10.1016/0921-4526(93)90382-G
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The nature of quantum Hall conduction in quantum wires is revealed from a numerical study. Whereas the Hall conductivity, sigma(xy) for the fixed chemical potential, gives quantum Hall steps, sigma(xy) for a fixed number of electrons, as appropriate for mesoscopic systems, an oscillation is exhibited against the Aharonov-Bohm flux PHI with period (1/2)phi0. The flux-averaged sigma(xy) vanishes, which guarantees the validity of the use of transmission coefficients even in magnetic fields, and also restores the Onsager reciprocity for Hall-bar samples.
引用
收藏
页码：365 / 368
页数：4
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