Continuous phase shift in the forced interference of edge states in the quantum Hall regime

被引：0
|
作者：
Shin, M [1 ]
机构：
[1] Informat & Commun Univ, Sch Engn, Taejon 305714, South Korea
来源：
SOLID STATE COMMUNICATIONS | 2002年 / 122卷 / 09期
关键词：
mesoscopic system; edge state; ballistic transport; quantum wire;
D O I：
10.1016/S0038-1098(02)00135-7
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The edge states in the quantum Hall regime are forced to interfere on one side of an Aharonov-Bohm ring by a potential barrier. The net effect of the interference caused by the potential barrier is found to change the electron's phase by Delta in the final transmittance, and the phase shift Delta is continuous as the barrier potential is continuously changed. This result is in sharp contrast with the earlier study that Delta = 2npi, where n is an integer, regardless of the barrier potential. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：489 / 492
页数：4
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