GEOMETRICAL EFFECT OF COMPOSITE FERMIONS

被引：8

作者：

KHAETSKII, A

BAUER, GEW

机构：

[1] DELFT UNIV TECHNOL,DELFT INST MICROELECTR & SUBMICRON TECHNOL,2628 CJ DELFT,NETHERLANDS

[2] RUSSIAN ACAD SCI,INST MICROELECTR TECHNOL,CHERNOGOLOVKA 142432,RUSSIA

来源：

PHYSICAL REVIEW B | 1995年 / 51卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.51.7369

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

According to recent theoretical and experimental work, the two-dimensional interacting electron gas in a strong magnetic field can be well described in terms of composite fermions for which the net magnetic field vanishes at a filling factor 1/2. We present a semiclassical theory of a geometrical effect of composite fermions that manifests itself by a strong suppression of the current through a gated sample under application of a very small gate voltage. This is explained by the strong bending of the classical ballistic trajectories of the composite fermions by the net weak magnetic field produced by the gate voltage. © 1995 The American Physical Society.

引用

页码：7369 / 7372

页数：4

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