Coulomb blockade and Kondo effect in a quantum hall antidot

被引：16
|
作者：
Sim, HS
Kataoka, M
Yi, H
Hwang, NY
Choi, MS
Yang, SRE
机构：
[1] Korea Inst Adv Study, Sch Phys, Seoul 130722, South Korea
[2] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England
[3] Korea Univ, Dept Phys, Seoul 136701, South Korea
来源：
PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 26期
关键词：
D O I：
10.1103/PhysRevLett.91.266801
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We propose a general capacitive model for an antidot, which has two localized edge states with different spins in the quantum Hall regime. The capacitive coupling of localized excess charges, which are generated around the antidot due to magnetic flux quantization, and their effective spin fluctuation can result in Coulomb blockade, h/(2e) Aharonov-Bohm oscillations, and the Kondo effect. The resultant conductance is in qualitative agreement with recent experimental data.
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页数：4
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