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Quantum Hall effect at low magnetic fields

Bodo Huckestein
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Abstract

The temperature and scale dependence of resistivities in the standard scaling theory of the integer quantum Hall effect is discussed. It is shown that recent experiments, claiming to observe a discrepancy with the global phase diagram of the quantum Hall effect, are in fact in agreement with the standard theory. The apparent low-field transition observed in the experiments is identified as a crossover due to weak localization and a strong reduction of the conductivity when Landau quantization becomes dominant.

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Bodo Huckestein. 2000-02-16. Quantum Hall effect at low magnetic fields. https://doi.org/10.1103/physrevlett.84.3141

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