Spin-Resolved Edge States around an Antidot in the Vicinity of the ν= 2 Quantum Hall State
Spin-Resolved Edge States around an Antidot in the Vicinity of the ν= 2 Quantum Hall State
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DOI：
10.1143/jpsj.78.124704
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发表时间：
2009-09
影响因子：
1.7
通讯作者：
Masanori Kato;A. Endo;S. Katsumoto;Y. Iye
中科院分区：
文献类型：
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作者：
Masanori Kato;A. Endo;S. Katsumoto;Y. Iye
我们研究了在ν= 2量子霍尔态附近的单个反点系统中电子输运的自旋相关效应，在反点周围形成了最低朗道能级的两个不同自旋的边缘态.电导呈现成对的h /2 e Aharonov-Bohm（AB）振荡。使用倾斜磁场技术，我们已经观察到的振荡与总磁场的演变和伴随的变化的差分电导的源漏偏置依赖。从观测中，我们提取了塞曼能量对AB振荡的影响。
We have investigated spin-related effects on the electronic transport in a single antidot system in the vicinity of the ν= 2 quantum Hall state where two edge states with different spins of the lowest Landau level are formed around the antidot. The conductance exhibits the paired h /2 e Aharonov–Bohm (AB) oscillations. Using a tilted magnetic field technique, we have observed the evolution of the oscillations with the total magnetic field and a concomitant change in the source–drain bias dependence of the differential conductance. From the observation, we extract the effect of the Zeeman energy on the AB oscillations.