New resistance maxima in the fractional quantum Hall effect regime

被引：110

作者：

Kronmuller, S ^{[1
]}

Dietsche, W

Weis, J

von Klitzing, K

Wegscheider, W

Bichler, M

机构：

[1] Max Planck Inst Festkorperforsch, Stuttgart, Germany

[2] Tech Univ Munich, Walter Schottky Inst, Munich, Germany

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.81.2526

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The magnetoresistance of a narrow single quantum well is spectacularly different from the usual behavior. At filling factors 2/3 and 3/5 we observe large and sharp maxima in the longitudinal resistance instead of the expected minima. The peak value of the resistance exceeds those of the surrounding magnetic field regions by a factor of up to 3. The formation of the maxima takes place on very large time scales which suggests a close relation with nuclear spins. We discuss the properties of the observed maxima due to a formation of domains of different electronic states. [S0031-9007(98)07239-1].

引用

页码：2526 / 2529

页数：4

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