Magnetism induced by electric impurities: A one-body problem with half the physics of the fractional quantum Hall effect

Details Magnetism induced by electric impurities: A one-body problem with half the physics of the fractional quantum Hall effect Magnetism induced by electric impurities: A one-body problem with half the physics of the fractional quantum Hall effect

2006-09-15

arxiv.org/abs/cond-mat/0609380v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

11 pages, 2 figures

Scientific paper

We study spectra for a 2D electron in the lowest Landau level with randomly distributed, repulsively correlated electric impurities. The lowest energy band reflects an effective magnetic field downshifted by an integer multiple of the impurity density. The downshift is precisely half that for the corresponding electron density in the composite-fermion picture of the fractional quantum Hall regime.

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