Landau level shift under the influence of short-range impurities in gapless graphene
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2012
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IOP Publishing Ltd
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Abstract
We study theoretically the level shift of massless Dirac fermions in a graphene monolayer subjected to a quantizing perpendicular magnetic field under the influence of short-range impurities. A Green function method is used to obtain closed expressions for the Landau level shift for any sharply peaked impurity potential approaching a delta-shell potential.
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©IOP Publishing Ltd.
This work was supported by MICINN (projects Mosaico and MAT2010-17180). The authors thank A V Malyshev for helpful comments.