Aharonov-Bohm-type oscillations in antidot lattices in the quantum Hall regime

被引：16

作者：

Kato, Masanori ^{[1
]}

Endo, Akira ^{[1
]}

Katsumoto, Shingo ^{[1
]}

Iye, Yasuhiro ^{[1
]}

机构：

[1] Univ Tokyo, Inst Solid State Phys, Chiba 2778581, Japan

来源：

PHYSICAL REVIEW B | 2008年 / 77卷 / 15期

关键词：

D O I：

10.1103/PhysRevB.77.155318

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Various aspects of the Aharonov-Bohm(AB)-type effects in antidot lattices in the quantum Hall (QH) regime are studied. Features associated with spin-resolved edge channels formed around the antidots are observed in the vicinity of the nu=2 [nu being the Landau level (LL) filling factor] QH state. AB-type oscillations with anomalous periodicities lying between h/2e and h/3e are observed on the higher field side of the nu=2 QH state. The phenomenon is interpreted basically as h/2e oscillation reported earlier for single antidot systems, but with important modification specific to the antidot array system. By tuning the negative front gate bias, different regimes of relative importance of the intra- and inter-LL tunnelings are explored.

引用

页数：7

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