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dc.contributor.authorSHVETS, IGORen
dc.date.accessioned2010-07-15T11:44:49Z
dc.date.available2010-07-15T11:44:49Z
dc.date.issued2003en
dc.date.submitted2003en
dc.identifier.citationJin, X. S.; Shvets, I. V., Influence of ferromagnetic substrate on the magnetoresistance of Cr film across a nonmagnetic insulating layer, Journal of Applied Physics, 94, 8, 2003, 5035-5040en
dc.identifier.otherYen
dc.identifier.urihttp://hdl.handle.net/2262/40377
dc.descriptionPUBLISHEDen
dc.description.abstract(5 nm) Cr/(x?nm) MgO/Mn0.52Zn0.48Fe2O4 (MnZn spinel) substrate (1<x<7?nm), as well as (5 nm) Cr/(7 nm) MgO/glass substrate structures have been grown using molecular beam epitaxy. The influence of the MnZn spinel on the in-plane transport and magnetotransport properties of the Cr layer were studied. The existence of pinholes in the MgO layer was explored by evaluating resistance versus temperature, R(T), dependencies. A hump was observed on the R(T) curves for the MgO layer thickness (tMgO) less than 5 nm. This results from the electrical coupling between the Cr film and the MnZn spinel substrate through the pinholes in the MgO layer. A reversal of the magnetoresistance (MR) sign in Cr film was observed when tMgO is less than 7 nm. It is thought that the effect of the electrical coupling through the pinholes and the magnetostatic coupling are not the reasons for the observed negative MR. A model is proposed which suggests that the magnetic structure in the Cr film adjoining a pinhole is distorted because of the exchange coupling. Such areas in the Cr film are thought to contribute to the negative MR.en
dc.description.sponsorshipThis work was supported by Science Foundation Ireland SFI under Contract No. 00/PI.1/C042.en
dc.format.extent5035-5040en
dc.language.isoenen
dc.relation.ispartofseriesJournal of Applied Physicsen
dc.relation.ispartofseries94en
dc.relation.ispartofseries8en
dc.rightsYen
dc.subjectAtomic, molecular and chemical physicsen
dc.subjectthin filmsen
dc.titleInfluence of ferromagnetic substrate on the magnetoresistance of Cr film across a nonmagnetic insulating layeren
dc.typeJournal Articleen
dc.contributor.sponsorScience Foundation Ireland (SFI)en
dc.type.supercollectionscholarly_publicationsen
dc.type.supercollectionrefereed_publicationsen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/ivchvetsen
dc.identifier.rssinternalid30534en
dc.identifier.rssurihttp://dx.doi.org/10.1063/1.1606520en


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