Novel Finite Temperature Conductivity in Quantum Hall Systems

Sudhansu S. Mandal; S. Ramaswamy; V. Ravishankar

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Novel Finite Temperature Conductivity in Quantum Hall Systems

Sudhansu S. Mandal·S. Ramaswamy·V. Ravishankar

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Abstract

We study quantum Hall systems (mainly the integer case) at finite temperatures and show that there is a novel temperature dependence even for a pure system, thanks to the `anomalous' nature of generators of translation. The deviation of Hall conductivity from its zero temperature value is controlled by a parameter $T_0 =πρ/m^\ast N$ which is sample specific and hence the universality of quantization is lost at finite temperatures.

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Sudhansu S. Mandal, S. Ramaswamy, V. Ravishankar. 1995-07-27. Novel Finite Temperature Conductivity in Quantum Hall Systems. https://arxiv.org/abs/cond-mat/9507125

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