Scaling and universality of integer quantum Hall plateau-to-plateau transitions -: art. no. 206807

被引：111

作者：

Li, WL ^{[1
]}

Csáthy, GA

Tsui, DC

Pfeiffer, LN

West, KW

机构：

[1] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA

[2] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA

[3] Bell Labs, Lucent Technol, Murray Hill, NJ 07974 USA

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.94.206807

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have investigated the integer quantum Hall plateau-to-plateau transition in two-dimensional electrons confined to AlxGa1-xAs-Al0.33Ga0.67As heterostructures over a broad range of Al concentration x. For x between 0.65% and 1.6%, where the dominant contribution to disorder is from the short-range alloy potential fluctuations, we observe a perfect power-law scaling in the temperature range from 30 mK to 1 K with a critical exponent kappa=0.42 +/- 0.01.

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页数：4

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