Mark B. Lundeberg, Joshua A. Folk
Published 2009-10-22, updated 2010-07-26Version 2
We report measurements of the effects of a random vector potential generated by applying an in-plane magnetic field to a graphene flake. Magnetic flux through the ripples cause orbital effects: phase-coherent weak localization is suppressed, while quasi-random Lorentz forces lead to anisotropic magnetoresistance. Distinct signatures of these two effects enable an independent estimation of the ripple amplitude and correlation length.
Comments: Various changes; added appendix for Boltzmann calculation of anisotropic magnetoresistance
Journal: Phys. Rev. Lett. 105, 146804 (2010)
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