期刊
PHYSICAL REVIEW LETTERS
卷 94, 期 20, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.94.206807
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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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