TY - JOUR
T1 - A perpendicular graphene/ferromagnet electrode for spintronics
AU - Naganuma, H.
AU - Zatko, V.
AU - Galbiati, M.
AU - Godel, F.
AU - Sander, A.
AU - Carrétéro, C.
AU - Bezencenet, O.
AU - Reyren, N.
AU - Martin, M. B.
AU - Dlubak, B.
AU - Seneor, P.
N1 - Funding Information:
This work was partly supported by the JSPS core to core program, A. Advanced Research Networks. We acknowledge financial support from the European Commission through the H2020 Future and Emerging Technologies Graphene Flagship (Grant Nos. 881603 and 785219) and Skytop (Grant No. 824123). This research was supported by a public grant overseen by the French National Research Agency (ANR) through FLAG-ERA SographMEM Project Grant No. ANR-19-GRFI-0001-07 and as part of the “Investissements d’Avenir” program (Labex NanoSaclay, Reference: ANR-10-LABX-0035). This study was supported by the JST Program on Open Innovation Platform with Enterprises, Research Institute and Academia (OPERA), KAKENHI (No. 15H03548), Center for Spintronics Integrated Systems (No. J190001511) foundation, and The Murata Science Foundation (072).
Publisher Copyright:
© 2020 Author(s).
PY - 2020/4/27
Y1 - 2020/4/27
N2 - We report on the large-scale integration of graphene layers over a FePd perpendicular magnetic anisotropy (PMA) platform, targeting further downscaling of spin circuits. An L10 FePd ordered alloy showing both high magneto-crystalline anisotropy and a low magnetic damping constant, is deposited by magnetron sputtering. The graphene layer is then grown on top of it by large-scale chemical vapor deposition. A step-by-step study, including structural and magnetic analyses by x-ray diffraction and Kerr microscopy, shows that the measured FePd properties are preserved after the graphene deposition process. This scheme provides a graphene protected perpendicular spin electrode showing resistance to oxidation, atomic flatness, stable crystallinity, and perpendicular magnetic properties. This, in turn, opens the way to the generalization of hybrid 2D-materials on optimized PMA platforms, sustaining the development of spintronics circuits based on perpendicular spin-sources as required, for instance, for perpendicular-magnetic random-access memory schemes.
AB - We report on the large-scale integration of graphene layers over a FePd perpendicular magnetic anisotropy (PMA) platform, targeting further downscaling of spin circuits. An L10 FePd ordered alloy showing both high magneto-crystalline anisotropy and a low magnetic damping constant, is deposited by magnetron sputtering. The graphene layer is then grown on top of it by large-scale chemical vapor deposition. A step-by-step study, including structural and magnetic analyses by x-ray diffraction and Kerr microscopy, shows that the measured FePd properties are preserved after the graphene deposition process. This scheme provides a graphene protected perpendicular spin electrode showing resistance to oxidation, atomic flatness, stable crystallinity, and perpendicular magnetic properties. This, in turn, opens the way to the generalization of hybrid 2D-materials on optimized PMA platforms, sustaining the development of spintronics circuits based on perpendicular spin-sources as required, for instance, for perpendicular-magnetic random-access memory schemes.
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U2 - 10.1063/1.5143567
DO - 10.1063/1.5143567
M3 - Article
AN - SCOPUS:85088044012
SN - 0003-6951
VL - 116
JO - Applied Physics Letters
JF - Applied Physics Letters
IS - 17
M1 - 173101
ER -