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Dirac electron in graphene under supersymmetry generated magnetic fields

2014/02/28 by Bikashkali Midya, David J Fernández · 1 citation
Physics and Astronomy · #cond-mat.mes-hall #quant-ph

paper · pdf · doi:10.1088/1751-8113/47/28/285302

published as J. Phys. A 47, 285302 (2014)

arxiv created 2014/07/01 · arxiv updated 2014/07/02

Abstract

We use supersymmetry transformations to obtain new one parameter family of inhomogeneous magnetic fields B = \widetildeB(x,λ) ez for which the massless Dirac electron possesses exact solution. The inhomogeneity appearing in \widetildeB(x,λ) can be controlled by the parameter λ. The obtained magnetic fields are interpreted as deformed variants of some physically attainable well known magnetic fields. A particular example, when a constant magnetic field is deformed, is considered to show that equidistant Landau levels exist even in the presence of an infinite number of specially designed inhomogeneous magnetic fields.

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