MAGNETIC BREAKDOWN AND MAGNETORESISTANCE OSCILLATIONS IN A PERIODICALLY MODULATED 2-DIMENSIONAL ELECTRON-GAS

被引：67
|
作者：
STREDA, P [1 ]
MACDONALD, AH [1 ]
机构：
[1] INDIANA UNIV, DEPT PHYS, BLOOMINGTON, IN 47405 USA
来源：
PHYSICAL REVIEW B | 1990年 / 41卷 / 17期
关键词：
D O I：
10.1103/PhysRevB.41.11892
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We develop a semiclassical theory for the magnetoresistance oscillations recently observed in two-dimensional systems with periodically modulated potentials. We show that these oscillations may be thought of as oscillations in the probability of magnetic breakdown. Our theory demonstrates a connection between the magnitude of the oscillations and the size of the positive magnetoresistance at weak magnetic fields. © 1990 The American Physical Society.
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收藏
页码：11892 / 11898
页数：7
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