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

页码：365 / 368

页数：4

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