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dc.contributor.authorRODE, KARSTENen
dc.date.accessioned2015-02-24T12:33:25Z
dc.date.available2015-02-24T12:33:25Z
dc.date.issued2006en
dc.date.submitted2006en
dc.identifier.citationBea, Helene; Bibes, Manuel; Fusil, Stephane; et al., Investigation on the origin of the magnetic moment of BiFeO3 thin films by advanced x-ray characterizations, Physical Review B - Condensed Matter and Materials Physics, 74, 2, 2006, 020101-en
dc.identifier.otherYen
dc.identifier.urihttp://hdl.handle.net/2262/73353
dc.descriptionPUBLISHEDen
dc.description.abstractSingle phase 001 -oriented BiFeO 3 BFO thin films grown by pulsed laser deposition can only be obtained in a narrow window of deposition pressure and temperature and have a low magnetic moment. Out of the stability window Fe- or Bi-rich impurity phases form, which has a strong impact on the physical and structural properties of the films, even for impurity concentrations hardly detectable by standard x-ray diffraction mea- surements. By using more sensitive tools such as x-ray absorption spectroscopy and x-ray magnetic circular dichroism and performing advanced x-ray diffraction characterization, we show that in nonoptimal conditions Fe forms ferrimagnetic -Fe 2 O 3 precipitates that are responsible for virtually all the ferromagnetic signal measured on such BFO films by standard magnetometry. This confirms that the BFO phase has a very low intrinsic moment that does not depend on strain. We also study the influence of film thickness on the nucleation of parasitic phases and find that epitaxial strain can stabilize the pure BFO phase in slightly overoxidizing growth conditionsen
dc.description.sponsorshipEnlightening discussions with F. Petroff and V. Cros are gratefully acknowledged. This work has been supported by the EU STREP MACOMUFI Contract No. 033221 and the contract FEMMES of the Agence Nationale pour la Recher- che. H.B. also acknowledges financial support from the Con- seil Général de l’Essonneen
dc.format.extent020101en
dc.language.isoenen
dc.relation.ispartofseriesPhysical Review B - Condensed Matter and Materials Physicsen
dc.relation.ispartofseries74en
dc.relation.ispartofseries2en
dc.rightsYen
dc.subjectpulsed laseren
dc.subject.lcshpulsed laseren
dc.titleInvestigation on the origin of the magnetic moment of BiFeO3 thin films by advanced x-ray characterizationsen
dc.typeJournal Articleen
dc.type.supercollectionscholarly_publicationsen
dc.type.supercollectionrefereed_publicationsen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/rodeken
dc.identifier.rssinternalid101060en
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevB.74.020101en
dc.rights.ecaccessrightsopenAccess


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