Weak Delocalization in Graphene on a Ferromagnetic Insulating Film.
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, the interplay between the magnetoresistance of graphene and the magnetization of an underlying ferromagnetic insulating film is studied in detail. A clear correlation between both magnitudes is observed but through a careful modeling 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 is found. The results emphasize the complexity arising at the interface between magnetic and 2D materials.
CIC nanoGUNE, E-20018, Donostia-San Sebastian, Basque Country, Spain.
Luca
L
Pietrobon
CIC nanoGUNE, E-20018, Donostia-San Sebastian, Basque Country, Spain.
Lorenzo
L
Fallarino
CIC nanoGUNE, E-20018, Donostia-San Sebastian, Basque Country, Spain.
Andreas
A
Berger
CIC nanoGUNE, E-20018, Donostia-San Sebastian, Basque Country, Spain.
Andrey
A
Chuvilin
CIC nanoGUNE, E-20018, Donostia-San Sebastian, Basque Country, Spain.
Fèlix
F
Casanova
CIC nanoGUNE, E-20018, Donostia-San Sebastian, Basque Country, Spain.
Luis E
LE
Hueso
ferromagnetic insulators; ferromagnetics; graphene; proximity effects; weak localization