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Strong suppression of weak (anti)localization in graphene

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arxiv cond-mat/0603826 v2 pith:JAEH5FX4 submitted 2006-03-30 cond-mat.mes-hall

Strong suppression of weak (anti)localization in graphene

S.V. Morozov , K.S. Novoselov , M.I. Katsnelson , F. Schedin , L.A. Ponomarenko , D. Jiang , & A.K. Geim This is my paper
classification cond-mat.mes-hall
keywords graphenemagnetoresistanceabsentantiarisingattributedcasescause
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Low-field magnetoresistance is ubiquitous in low-dimensional metallic systems with high resistivity and well understood as arising due to quantum interference on self-intersecting diffusive trajectories. We have found that in graphene this weak-localization magnetoresistance is strongly suppressed and, in some cases, completely absent. This unexpected observation is attributed to mesoscopic corrugations of graphene sheets which cause a dephasing effect similar to that of a random magnetic field.

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