We have investigated the integer quantum Hall plateau-to-plateau transition in two-dimensional electrons confined to AlₓGa_1-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 κ=0.42±0.01.
No takes yet. Share an insight, caveat, or question.
Li et al. (2005) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: