Abstract:
Magnetotransport of two-dimensional electrons and holes was studied in magnetic fields up to 300 kG and temperatures down to 0.5 K. In addition to previously reported structures at Landau-level filling factors =13 and 23, new structures were resolved at =43, 53, 25, 35, 45, and 27. The results suggest that fractional quantization of the Hall effect exists in multiple series, each based on the inverse of an odd integer. © 1983 The American Physical Society.
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