Scaling Behavior and Variable Hopping Conductivity in the Quantum Hall Plateau Transition

Details Scaling Behavior and Variable Hopping Conductivity in the Quantum Hall Plateau Transition Scaling Behavior and Variable Hopping Conductivity in the Quantum Hall Plateau Transition

2007-03-27

arxiv.org/abs/cond-mat/0703711v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures

Scientific paper

10.1016/j.physleta.2007.03.059

We have measured the temperature dependence of the longitudinal resistivity $% \rho_{xx}$ of a two-dimensional electron system in the regime of the quantum Hall plateau transition. We extracted the quantitative form of scaling function for $\rho_{xx}$ and compared it with the results of ordinary scaling theory and variable range hopping based theory. We find that the two alternative theoretically proposed scaling functions are valid in different regions.

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