1:30 PM - 3:30 PM
[14p-PA1-40] Graphene covered FePd ferromagnetic electrodes as a platform for perpendicular-2D spin devices
Keywords:Graphene, 2D, FePd
We report on the large-scale integration of graphene layers with a FePd perpendicular magnetic anisotropy platform as required for further scaling of spin circuits. A L10-FePd ordered alloy showing both high magnetocrystalline anisotropy and low magnetic damping constant is formed by r.f. magnetron sputtering. The graphene layer is then integrated on top by a large-scale chemical vapor deposition step. A step-by-step study, including structural analyses by X-ray diffraction and magnetic analyses by Kerr microscopy, shows the full preservation of FePd properties during the graphene integration. This scheme provides thus a graphene protected perpendicular spin source with resistance to oxidation, atomic flatness, stable crystallinity, and large perpendicular magnetic properties. This in turns opens the way to the generalization hybrid 2D-materials on optimized PMA platforms, sustaining the development of spintronics circuits using perpendicular spin-sources.