A perpendicular graphene/ferromagnet electrode for spintronics
Autor: | C. Carrétéro, Marta Galbiati, Bruno Dlubak, Odile Bezencenet, Nicolas Reyren, Anke Sander, Pierre Seneor, Florian Godel, Victor Zatko, Hiroshi Naganuma, Marie-Blandine Martin |
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Přispěvatelé: | Center for Innovative Integrated Electronics Systems, Tohoku University, Tohoku University [Sendai], Graduate School of Engineering, Tohoku University, Center for Spintronics Integrated Systems, Tohoku University, Center for Spintronics Research Network, Tohoku University, Unité mixte de physique CNRS/Thales (UMPhy CNRS/THALES), Centre National de la Recherche Scientifique (CNRS)-THALES, Thales Research and Technology [Palaiseau], THALES |
Rok vydání: | 2020 |
Předmět: |
Materials science
Physics and Astronomy (miscellaneous) 02 engineering and technology Chemical vapor deposition 01 natural sciences law.invention Condensed Matter::Materials Science law 0103 physical sciences Perpendicular [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat] Anisotropy Materials ComputingMilieux_MISCELLANEOUS [PHYS]Physics [physics] 010302 applied physics Spintronics Condensed matter physics Graphene Sputter deposition 021001 nanoscience & nanotechnology Innovacions tecnològiques Ferromagnetism Magnetic damping 0210 nano-technology |
Zdroj: | Applied Physics Letters Applied Physics Letters, American Institute of Physics, 2020, 116 (17), pp.173101. ⟨10.1063/1.5143567⟩ Naganuma, Hiroshi Zatko, V. Galbiati, Marta Godel, Florian Sander, Anke Carrétéro, C. Bezencenet, O. Reyren, N. Martin, M.-B. Dlubak, Bruno Seneor, Pierre 2020 A perpendicular graphene/ferromagnet electrode for spintronics Applied Physics Letters 116 173101 RODERIC. Repositorio Institucional de la Universitat de Valéncia instname RODERIC: Repositorio Institucional de la Universitat de Valéncia |
ISSN: | 1077-3118 0003-6951 |
Popis: | 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. |
Databáze: | OpenAIRE |
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