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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