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dc.contributor.authorCOEY, JOHNen
dc.contributor.authorVENKATESAN, MUNUSWAMYen
dc.date.accessioned2009-08-20T15:21:21Z
dc.date.available2009-08-20T15:21:21Z
dc.date.issued2005en
dc.date.submitted2005en
dc.identifier.citationJ.M.D. Coey, M. Venkatesan, L.S. Dorneles, C.B. Fitzgerald and P. Stamenov, Magnetism in hafnium dioxide, Physical Review B, 72, 2, 2005, 024450en
dc.identifier.otherYen
dc.identifier.urihttp://hdl.handle.net/2262/31851
dc.descriptionPUBLISHEDen
dc.description.abstractThin films of HfO2 produced by pulsed-laser deposition on sapphire, yttria-stabilized zirconia, or silicon substrates show ferromagnetic magnetization curves with little hysteresis and extrapolated Curie temperatures far in excess of 400 K. The moment does not scale with film thickness, but in terms of substrate area it is typically in the range 150?400 ?B nm?2. The magnetization exhibits a remarkable anisotropy, which depends on texture and substrate orientation. Pure HfO2 powder develops a weak magnetic moment on heating in vacuum, which is eliminated on annealing in oxygen. Lattice defects are the likely source of the magnetism.en
dc.description.sponsorshipThis work was supported by the Science Foundation of Ireland. We are grateful to Professor James Lunney for the use of his Pulsed Laser Deposition facilities, and to M. Kamino and Yang Zhou for the TEM and AGFM measurements, respectively. We have benefited from useful comments from G. A. Sawatzky and N. Krasnikova. L. S. Dorneles was supported by the Irish Research Council for Science Engineering and Technology IRCSET .en
dc.format.extent024450en
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.relation.ispartofseriesPhysical Review Ben
dc.relation.ispartofseries72en
dc.relation.ispartofseries2en
dc.rightsYen
dc.subjectPhysicsen
dc.titleMagnetism in hafnium dioxideen
dc.typeJournal Articleen
dc.contributor.sponsorScience Foundation Ireland (SFI)en
dc.contributor.sponsorIrish Research Council for Science and Engineering Technology (IRCSET)en
dc.type.supercollectionscholarly_publicationsen
dc.type.supercollectionrefereed_publicationsen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/jcoeyen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/venkatemen
dc.identifier.rssinternalid60504en
dc.identifier.rssurihttp://dx.doi.org/10.1103/PhysRevB.72.024450en
dc.identifier.rssurihttp://dx.doi.org/10.1103/PhysRevB.72.024450


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