About: Interface-Induced Room-Temperature Ferromagnetism in Hydrogenated Epitaxial Graphene

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We show ferromagnetic properties of hydrogen-functionalized epitaxial graphene on SiC. Ferromagnetism in such a material is not directly evident as it is inherently composed of only nonmagnetic constituents. Our results nevertheless show strong ferromagnetism with a saturation of 0:9mí B=hexagon projected area, which cannot be explained by simple magnetic impurities. The ferromagnetism is unique to hydrogenated epitaxial graphene on SiC, where interactions with the interfacial buffer layer play a crucial role. We argue that the origin of the observed ferromagnetism is governed by electron correlation effects of the narrow Si dangling bond states in the buffer layer exchange coupled to localized states in the hydrogenated graphene layer. This forms a quasi-three-dimensional ferromagnet with a Curie temperature higher than 300 K. We show ferromagnetic properties of hydrogen-functionalized epitaxial graphene on SiC. Ferromagnetism in such a material is not directly evident as it is inherently composed of only nonmagnetic constituents. Our results nevertheless show strong ferromagnetism with a saturation of 0:9mí B=hexagon projected area, which cannot be explained by simple magnetic impurities. The ferromagnetism is unique to hydrogenated epitaxial graphene on SiC, where interactions with the interfacial buffer layer play a crucial role. We argue that the origin of the observed ferromagnetism is governed by electron correlation effects of the narrow Si dangling bond states in the buffer layer exchange coupled to localized states in the hydrogenated graphene layer. This forms a quasi-three-dimensional ferromagnet with a Curie temperature higher than 300 K. (en)
Title	Interface-Induced Room-Temperature Ferromagnetism in Hydrogenated Epitaxial Graphene Interface-Induced Room-Temperature Ferromagnetism in Hydrogenated Epitaxial Graphene (en)
skos:prefLabel	Interface-Induced Room-Temperature Ferromagnetism in Hydrogenated Epitaxial Graphene Interface-Induced Room-Temperature Ferromagnetism in Hydrogenated Epitaxial Graphene (en)
skos:notation	RIV/00216305:26620/13:PU105407!RIV14-MSM-26620___
http://linked.open...avai/predkladatel	Středoevropský technologický institut
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(ED1.1.00/02.0068)
http://linked.open...iv/cisloPeriodika	16
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Konečný, Martin
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoké učení technické v Brně / Středoevropský technologický institut
http://linked.open...dnocenehoVysledku	80729
http://linked.open...ai/riv/idVysledku	RIV/00216305:26620/13:PU105407
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Graphene, Feromagnetism, SiC, Intercalation (en)
http://linked.open.../riv/klicoveSlovo	Feromagnetism Intercalation Graphene SiC
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[C976D8D986C6]
http://linked.open...i/riv/nazevZdroje	Physical Review Letters
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	Central european institute of technology
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	111
http://linked.open...iv/tvurceVysledku	Konečný, Martin Uhlířová, K. Aarts, J. Burkhard, Marko Flipse, C.F.J. Giesbers, A.J.M Peters, Eva Carmen
issn	0031-9007
number of pages	5 (xsd:int)
http://localhost/t...ganizacniJednotka	26620

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