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dc.contributor.authorCOEY, JOHNen
dc.contributor.authorDIAO, ZHUen
dc.date.accessioned2014-04-04T15:09:08Z
dc.date.available2014-04-04T15:09:08Z
dc.date.issued2010en
dc.date.submitted2010en
dc.identifier.citationDiao, Z., Nowak, E.R., Feng, G., Coey, J.M.D., Magnetic noise in structured hard magnets , Physical Review Letters, 104, 4, 2010, art. no. 047202en
dc.identifier.otherYen
dc.identifier.urihttp://hdl.handle.net/2262/68411
dc.descriptionPUBLISHEDen
dc.description.abstractThe anomalous Hall effect of wires patterned from ?Co90Fe10=Pt?n multilayers, with 10 n 50, is used to determine the magnetization process in a small volume of maze domains. Time-independent 1=f noise appears in samples with a quality factor Q<1 at points on the hysteresis loop where the magnetization reverses continuously. The magnetic noise is associated with reversible excursions of segments of a domain wall 100 nm long. Barkhausen jumps are observed close to either the switching field or the saturation field where the noise power spectrum varies as 1=f1:7, and its magnitude decays with time.en
dc.description.sponsorshipThis work was supported by Science Foundation Ireland as part of the MANSE project. It also forms part of the ESF Spin Currents network which was supported by Enterprise Ireland. E. R. N. acknowledges sabbatical support from the University of Delaware and from DOE under Grant No. DE-FG02-07ER46374.en
dc.format.extentart. no. 047202en
dc.language.isoenen
dc.relation.ispartofseriesPhysical Review Lettersen
dc.relation.ispartofseries104en
dc.relation.ispartofseries4en
dc.rightsYen
dc.subjectsaturation fielden
dc.subject.lcshsaturation fielden
dc.titleMagnetic noise in structured hard magnetsen
dc.typeJournal Articleen
dc.contributor.sponsorScience Foundation Ireland (SFI)en
dc.type.supercollectionscholarly_publicationsen
dc.type.supercollectionrefereed_publicationsen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/jcoeyen
dc.identifier.rssinternalid65898en
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevLett.104.047202en
dc.rights.ecaccessrightsOpenAccess
dc.subject.TCDThemeNanoscience & Materialsen


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