Current Carrying States in a Random Magnetic Field

Details Current Carrying States in a Random Magnetic Field Current Carrying States in a Random Magnetic Field

1996-11-06

arxiv.org/abs/cond-mat/9611048v1

Phys. Rev. B 55, R1922 (1997)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 7 eps figures

Scientific paper

10.1103/PhysRevB.55.R1922

We report results of a numerical study of noninteracting electrons moving in two dimensions, in the presence of a random potential and a random magnetic field for a sequence of finite sizes, using topological properties of the wave functions to identify extended states. Our results are consistent with the existence of a second order localization-delocalization transition driven by the random potential. The critical randomness strength and localization length exponent are estimated via a finite size scaling analysis.

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