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Article: Atomic-scale interfacial magnetism in Fe/graphene heterojunction

TitleAtomic-scale interfacial magnetism in Fe/graphene heterojunction
Authors
Issue Date2015
Citation
Scientific Reports, 2015, v. 5 How to Cite?
AbstractSuccessful spin injection into graphene makes it a competitive contender in the race to become a key material for quantum computation, or the spin-operation-based data processing and sensing. Engineering ferromagnetic metal (FM)/graphene heterojunctions is one of the most promising avenues to realise it, however, their interface magnetism remains an open question up to this day. In any proposed FM/graphene spintronic devices, the best opportunity for spin transport could only be achieved where no magnetic dead layer exists at the FM/graphene interface. Here we present a comprehensive study of the epitaxial Fe/graphene interface by means of X-ray magnetic circular dichroism (XMCD) and density functional theory (DFT) calculations. The experiment has been performed using a specially designed FM < inf > 1 < /inf > /FM < inf > 2 < /inf > /graphene structure that to a large extent restores the realistic case of the proposed graphene-based transistors. We have quantitatively observed a reduced but still sizable magnetic moments of the epitaxial Fe ML on graphene, which is well resembled by simulations and can be attributed to the strong hybridization between the Fe < inf > 3 < /inf > d < inf > z2 < /inf > and the C2pz orbitals and the sp-orbital-like behavior of the Fe < inf > 3 < /inf > d electrons due to the presence of graphene.
Persistent Identifierhttp://hdl.handle.net/10722/254441

 

DC FieldValueLanguage
dc.contributor.authorLiu, W. Q.-
dc.contributor.authorWang, W. Y.-
dc.contributor.authorWang, J. J.-
dc.contributor.authorWang, F. Q.-
dc.contributor.authorLu, C.-
dc.contributor.authorJin, F.-
dc.contributor.authorZhang, A.-
dc.contributor.authorZhang, Q. M.-
dc.contributor.authorLaan, G. Van Der-
dc.contributor.authorXu, Y. B.-
dc.contributor.authorLi, Q. X.-
dc.contributor.authorZhang, R.-
dc.date.accessioned2018-06-19T15:40:33Z-
dc.date.available2018-06-19T15:40:33Z-
dc.date.issued2015-
dc.identifier.citationScientific Reports, 2015, v. 5-
dc.identifier.urihttp://hdl.handle.net/10722/254441-
dc.description.abstractSuccessful spin injection into graphene makes it a competitive contender in the race to become a key material for quantum computation, or the spin-operation-based data processing and sensing. Engineering ferromagnetic metal (FM)/graphene heterojunctions is one of the most promising avenues to realise it, however, their interface magnetism remains an open question up to this day. In any proposed FM/graphene spintronic devices, the best opportunity for spin transport could only be achieved where no magnetic dead layer exists at the FM/graphene interface. Here we present a comprehensive study of the epitaxial Fe/graphene interface by means of X-ray magnetic circular dichroism (XMCD) and density functional theory (DFT) calculations. The experiment has been performed using a specially designed FM < inf > 1 < /inf > /FM < inf > 2 < /inf > /graphene structure that to a large extent restores the realistic case of the proposed graphene-based transistors. We have quantitatively observed a reduced but still sizable magnetic moments of the epitaxial Fe ML on graphene, which is well resembled by simulations and can be attributed to the strong hybridization between the Fe < inf > 3 < /inf > d < inf > z2 < /inf > and the C2pz orbitals and the sp-orbital-like behavior of the Fe < inf > 3 < /inf > d electrons due to the presence of graphene.-
dc.languageeng-
dc.relation.ispartofScientific Reports-
dc.titleAtomic-scale interfacial magnetism in Fe/graphene heterojunction-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1038/srep11911-
dc.identifier.scopuseid_2-s2.0-84935478670-
dc.identifier.volume5-
dc.identifier.spagenull-
dc.identifier.epagenull-
dc.identifier.eissn2045-2322-

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