Manifestation of a complex edge excitation structure in the quantum Hall regime at high fractional filling factors

被引：4

作者：

Deviatov, E. V. ^{[1
]}

Lorke, A. ^{[2
]}

Wegscheider, W. ^{[3
]}

机构：

[1] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Moscow District, Russia

[2] Univ Duisburg Essen, Festkorperphys Lab, D-47048 Duisburg, Germany

[3] Univ Regensburg, Inst Angew & Expt Phys, D-93040 Regensburg, Germany

来源：

PHYSICAL REVIEW B | 2008年 / 78卷 / 03期

关键词：

D O I：

10.1103/PhysRevB.78.035310

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We experimentally study a transport across the integer incompressible strip with local filling factor nu(c)=1 at the sample edge at high imbalances across this strip. The bulk is in the quantum Hall state at the integer (nu=2,3) or high fractional (nu=5/3,4/3) filling factors. Unlike the integer case, for the fractional bulk filling factors, we find a lack of the full equilibration across the edge even in the situation where no potential barrier survives in the integer incompressible strip with nu(c)=1. We interpret this result as the manifestation of complicated edge excitation structure at high fractional filling factors.

引用

页数：5

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