Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/12125
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dc.contributor.authorVANSWEEVELT, Rob-
dc.contributor.authorMORTET, Vincent-
dc.contributor.authorD'HAEN, Jan-
dc.contributor.authorRUTTENS, Bart-
dc.contributor.authorVan Haesendonck, Chris-
dc.contributor.authorPartoens, Bart-
dc.contributor.authorPeeters, Francois M.-
dc.contributor.authorWAGNER, Patrick-
dc.date.accessioned2011-08-17T14:09:02Z-
dc.date.availableNO_RESTRICTION-
dc.date.available2011-08-17T14:09:02Z-
dc.date.issued2011-
dc.identifier.citationPHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 208(6). p. 1252-1258-
dc.identifier.issn1862-6300-
dc.identifier.urihttp://hdl.handle.net/1942/12125-
dc.description.abstractIn this paper, we report on the electronic transport properties of mesoscopic, ultrathin graphite flakes with a thickness corresponding to a stack of 150 graphene layers. The graphite flakes show an unexpectedly strong positive magnetoresistance (PMR) already at room temperature, which scales in good approximation with the square of the magnetic field. Furthermore, we show that the resistivity is unaffected by magnetic fields oriented in plane with the graphene layers. Hall effect measurements indicate that the charge carriers are p-type and their concentration increases with increasing temperature while the mobility is decreasing. The Hall voltage is non-linear in higher magnetic fields. Possible origins of the observed effects are discussed. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim-
dc.description.sponsorshipThe authors gratefully acknowledge the support by FWO - Research Foundation Flanders (project G.0159.07 "Structural and electronic properties of biologically modified, graphene-based layers"), by the Federal Belgian Interuniversity Attraction Poles Programme BELSPO (project TAP VI P6/42 "Quantum effects in clusters and nanowires") and by the Methusalem network "NANO - Antwerp-Hasselt," funded by the Flemish Community. Technical assistance by Stoffel D. Janssens (magnet calibration and software development), Dr. Hong Yin (AFM-based thickness studies), Dr. Ronald Thoelen (data analysis), and Prof. Hans-Gerd Boyen (XPS spectroscopy) is greatly appreciated.-
dc.language.isoen-
dc.publisherWILEY-BLACKWELL-
dc.subject.othergraphite; Hall effect; magnetoresistance-
dc.subject.othergraphite; Hall effect; magnetoresistance-
dc.titleStudy on the giant positive magnetoresistance and Hall effect in ultrathin graphite flakes-
dc.typeJournal Contribution-
dc.identifier.epage1258-
dc.identifier.issue6-
dc.identifier.spage1252-
dc.identifier.volume208-
local.format.pages7-
local.bibliographicCitation.jcatA1-
dc.description.notes[Vansweevelt, R; Mortet, V; D'Haen, J; Ruttens, B; Wagner, P] Hasselt Univ, Inst Mat Res, B-3590 Diepenbeek, Belgium [D'Haen, J; Ruttens, B; Wagner, P] IMEC Vzw, Div IMOMEC, B-3590 Diepenbeek, Belgium [Van Haesendonck, C] Katholieke Univ Leuven, Lab Solid State Phys & Magnetism, B-3001 Louvain, Belgium [Partoens, B; Peeters, FM] Univ Antwerp, Dept Phys, B-2020 Antwerp, Belgium patrick.wagner@uhasselt.be-
local.type.refereedRefereed-
local.type.specifiedArticle-
dc.bibliographicCitation.oldjcatA1-
dc.identifier.doi10.1002/pssa.201001206-
dc.identifier.isi000292945800008-
item.validationecoom 2012-
item.fullcitationVANSWEEVELT, Rob; MORTET, Vincent; D'HAEN, Jan; RUTTENS, Bart; Van Haesendonck, Chris; Partoens, Bart; Peeters, Francois M. & WAGNER, Patrick (2011) Study on the giant positive magnetoresistance and Hall effect in ultrathin graphite flakes. In: PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 208(6). p. 1252-1258.-
item.contributorVANSWEEVELT, Rob-
item.contributorMORTET, Vincent-
item.contributorD'HAEN, Jan-
item.contributorRUTTENS, Bart-
item.contributorVan Haesendonck, Chris-
item.contributorPartoens, Bart-
item.contributorPeeters, Francois M.-
item.contributorWAGNER, Patrick-
item.accessRightsRestricted Access-
item.fulltextWith Fulltext-
crisitem.journal.issn1862-6300-
crisitem.journal.eissn1862-6319-
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