Novel optical probe for quantum Hall system

被引：0
|
作者：
Biswajit Karmakar
Brij Mohan Arora
机构：
[1] Tata Institute of Fundamental Research,
来源：
Pramana | 2006年 / 67卷
关键词：
Surface photovoltage spectroscopy; quantum Hall effect; Landau levels; edge states; 73.43.-f; 07.60.-j; 73.43.Fj;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Surface photovoltage (SPV) spectroscopy has been used for the first time to explore Landau levels of a two-dimensional electron gas (2DEG) in modulation doped InP/InGaAs/InP QW in the quantum Hall regime. The technique gives spectroscopically distinct signals from the bulk Landau levels and the edge states. Evolution of the bulk Landau levels and the edge electronic states is investigated at 2.0 K for magnetic field up to 8 T using SPV spectroscopy.
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页码：191 / 198
页数：7
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