OSCILLATORY MAGNETORESISTANCE IN 2-DIMENSIONAL ELECTRON-SYSTEMS IN A PERIODICALLY MODULATED MAGNETIC-FIELD

被引:70
作者
YAGI, R
IYE, Y
机构
[1] Institute for Solid State Physics, the University of Tokyo, Roppongi, Minato-ku
关键词
D O I
10.1143/JPSJ.62.1279
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We have studied energy spectra of a two-dimensional electron system in the presence of a weak magnetic field modulation. It is found that the magnetoresistance shows an oscillatory behavior similar to the so-called Weiss oscillation for the case of an electric potential modulation. The main difference between the two cases is that the phase of the magnetoresistance oscillation is shifted by pi/2. This results in an inverted peak and valley structure for the magnetic field modulation as compared to the Weiss oscillation. We have also attempted to measure the predicted effect. So far the experimental observation is hindered by the dominant strain-induced Weiss oscillation.
引用
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页码:1279 / 1285
页数:7
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