Weak de-localization in graphene on a ferromagnetic insulating film

29 Jul 2016  ·  Pietrobon Luca, Fallarino Lorenzo, Berger Andreas, Chuvilin Andrey, Casanova Fèlix, Hueso Luis E. ·

Graphene has been predicted to develop a magnetic moment by proximity effect when placed on a ferromagnetic film, a promise that could open exciting possibilities in the fields of spintronics and magnetic data recording. In this work, we study in detail the interplay between the magnetoresistance of graphene and the magnetization of an underlying ferromagnetic insulating film... A clear correlation between both magnitudes is observed but we find, through a careful modelling of the magnetization and the weak localization measurements, that such correspondence can be explained by the effects of the magnetic stray fields arising from the ferromagnetic insulator. Our results emphasize the complexity arising at the interface between magnetic and two-dimensional materials. read more

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Mesoscale and Nanoscale Physics Materials Science