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Floating of critical states and the QH to insulator transition

H. Potempa·L. Schweitzer
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Abstract

The transition from the quantum Hall state to the insulator is considered for non-interacting electrons in a two-dimensional disordered lattice model with perpendicular magnetic field. Using correlated random disorder potentials the floating up of the critical states can be observed in a similar way as in the continuum model. Thus, the peculiar behaviour of the lattice models reported previously originates in the special choice of uncorrelated random disorder potentials.

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H. Potempa, L. Schweitzer. 2001-02-27. Floating of critical states and the QH to insulator transition. https://doi.org/10.1016/s0921-4526(01)00254-x

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