COMPOSITE FERMIONS TRAVERSING A POTENTIAL BARRIER

被引：2

作者：

BREY, L ^{[1
]}

TEJEDOR, C ^{[1
]}

机构：

[1] UNIV AUTONOMA MADRID,DEPT FIS MAT CONDENSADA,E-28049 MADRID,SPAIN

来源：

PHYSICAL REVIEW B | 1995年 / 51卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.51.17259

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Using a composite-fermion picture, we study the lateral transport between two two-dimensional electron gases, at filling factor 1/2, separated by a potential barrier. In the mean-field approximation, composite fermions far from the barrier are unaffected by a magnetic field while in the barrier region the effective magnetic field is different from zero. This produces a cutoff in the conductance when represented as a function of the thickness and height of the barrier. There is a range of barrier heights for which an incompressible liquid, at ν=1/3, exists in the barrier region. © 1995 The American Physical Society.

引用

页码：17259 / 17262

页数：4

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