Hall Conductivity in the presence of repulsive magnetic impurities

Details Hall Conductivity in the presence of repulsive magnetic impurities Hall Conductivity in the presence of repulsive magnetic impurities

1998-07-16

arxiv.org/abs/cond-mat/9807243v1

Eur. Phys. J. B 7, (1999), 527.

Physics

Condensed Matter

4 pages latex, one figure

Scientific paper

10.1007/s100510050644

The Hall conductivity of disordered magnetic systems consisting of hard-core point vortices randomly dropped on the plane with a Poissonian distribution, has a behavior analogous to the one observed experimentally by R.~J.~Haug, R.~R.~Gerhardts, K.~v.~Klitzling and K.~Ploog, with repulsive scatterers \cite {1}. We also argue that models of homogeneous magnetic field with disordered potential, have necessarily vanishing Hall conductivities when their Hilbert space is restricted to a given Landau level subspace.

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