Spin filtering by proximity effects at hybridized interfaces in spin-valves with 2D graphene barriers
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Spin filtering by proximity effects at hybridized interfaces in spin-valves with 2D graphene barriers

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Spin filtering by proximity effects at hybridized interfaces in spin-valves with 2D graphene barriers

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dc.contributor.author Piquemal-Banci, M.
dc.contributor.author Galceran, Regina
dc.contributor.author Dubois, Simon M.-M.
dc.contributor.author Zatko, V.
dc.contributor.author Galbiati, Marta
dc.contributor.author Godel, Florian
dc.contributor.author Martin, M.-B.
dc.contributor.author Weatherup, Robert S.
dc.contributor.author Petroff, F.
dc.contributor.author Fert, Albert
dc.contributor.author Charlier, Jean-Christophe
dc.contributor.author Robertson, John
dc.contributor.author Hofmann, Stephan
dc.contributor.author Dlubak, Bruno
dc.contributor.author Seneor, Pierre
dc.date.accessioned 2021-04-28T16:11:50Z
dc.date.available 2021-04-28T16:11:50Z
dc.date.issued 2020
dc.identifier.uri https://hdl.handle.net/10550/78965
dc.description.abstract We report on spin transport in state-of-the-art epitaxial monolayer graphene based 2D-magnetic tunnel junctions (2D-MTJs). In our measurements, supported by ab-initio calculations, the strength of interaction between ferromagnetic electrodes and graphene monolayers is shown to fundamentally control the resulting spin signal. In particular, by switching the graphene/ferromagnet interaction, spin transport reveals magneto-resistance signal MR > 80% in junctions with low resistance × area products. Descriptions based only on a simple K-point filtering picture (i.e. MR increase with the number of layers) are not sufficient to predict the behavior of our devices. We emphasize that hybridization effects need to be taken into account to fully grasp the spin properties (such as spin dependent density of states) when 2D materials are used as ultimately thin interfaces. While this is only a first demonstration, we thus introduce the fruitful potential of spin manipulation by proximity effect at the hybridized 2D material / ferromagnet interface for 2D-MTJs.
dc.language.iso eng
dc.relation.ispartof Nature Communications, 2020, vol. 11, p. 5670
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Piquemal-Banci, M. Galceran, Regina Dubois, Simon M.-M. Zatko, V. Galbiati, Marta Godel, Florian Martin, M.-B. Weatherup, Robert S. Petroff, F. Fert, Albert Charlier, Jean-Christophe Robertson, John Hofmann, Stephan Dlubak, Bruno Seneor, Pierre 2020 Spin filtering by proximity effects at hybridized interfaces in spin-valves with 2D graphene barriers Nature Communications 11 5670
dc.subject Ciència dels materials
dc.subject Nanotecnologia
dc.title Spin filtering by proximity effects at hybridized interfaces in spin-valves with 2D graphene barriers
dc.type info:eu-repo/semantics/article
dc.date.updated 2021-04-28T16:11:50Z
dc.identifier.doi https://doi.org/10.1038/s41467-020-19420-6
dc.identifier.idgrec 146199

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