Weak Delocalization in Graphene on a Ferromagnetic Insulating Film.

Authors :: Pietrobon L
Fallarino L
Berger A
Chuvilin A
Casanova F
Hueso LE
Source :: Small (Weinheim an der Bergstrasse, Germany) [Small] 2015 Dec 16; Vol. 11 (47), pp. 6295-301. Date of Electronic Publication: 2015 Oct 27.
Publication Year :: 2015
Abstract: 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.<br /> (© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)