Magnetic focusing of composite fermions in double quantum wells

被引：5

作者：

Cruz, H ^{[1
]}

机构：

[1] Univ La Laguna, Dept Fis Fundamental & Expt, La Laguna 38204, Tenerife, Spain

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1998年 / 10卷 / 21期

关键词：

D O I：

10.1088/0953-8984/10/21/022

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In this work, we have numerically integrated in space and time the effective-mass nonlinear Schrodinger equation for a composite fermion in a double-quantum-well system. Considering many-body effects and the existence of an external applied bias, a time-varying composite-fermion effective magnetic field with an amplitude which is oscillating with time in each quantum well has been obtained. As a consequence, the magnetic focusing peak positions in the magnetoresistance measurements will be shifted to a lower magnetic field value.

引用

页码：4677 / 4684

页数：8

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