Surface acoustic-wave-induced magnetoresistance oscillations in a two-dimensional electron gas

被引：26
|
作者：
Robinson, JP [1 ]
Kennett, MP
Cooper, NR
Fal'ko, VI
机构：
[1] Univ Lancaster, Dept Phys, Lancaster LA1 4YB, England
[2] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England
[3] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA
来源：
PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 03期
基金：
英国工程与自然科学研究理事会;
关键词：
D O I：
10.1103/PhysRevLett.93.036804
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study the geometrical commensurability oscillations imposed on the resistivity of 2D electrons in a perpendicular magnetic field by a propagating surface acoustic wave (SAW). We show that, for omega<omega(c), this effect contains an anisotropic dynamical classical contribution increasing the resistivity and a nonequilibrium quantum contribution isotropically decreasing the resistivity, and we predict zero-resistance states associated with geometrical commensurability at large SAW amplitude.
引用
收藏
页码：036804 / 1
页数：4
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