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Cationic and charge segregation in La2/3Ca1/3MnO3 thin films grown on (001) and (110) SrTiO3.

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dc.contributor.authorEstradé Albiol, Sònia
dc.contributor.authorArbiol i Cobos, Jordi
dc.contributor.authorPeiró Martínez, Francisca
dc.contributor.authorInfante, I. C.
dc.contributor.authorSánchez Barrera, Florencio
dc.contributor.authorFontcuberta i Griñó, Josep
dc.contributor.authorPeña, F. de la
dc.contributor.authorWalls, M.
dc.contributor.authorColliex, C.
dc.date.accessioned2012-10-11T06:49:34Z
dc.date.available2012-10-11T06:49:34Z
dc.date.issued2008
dc.date.updated2012-10-11T06:49:34Z
dc.description.abstractElectron energy-loss spectroscopy is used to map composition and electronic states in epitaxial La2/3Ca1/3MnO3 films grown on SrTiO3 001 and 110 substrates. It is found that in partially relaxed 110 films cationic composition and valence state of Mn3+/4+ ions are preserved across the film thickness. In contrast, in fully strained 001 films, the Ca/La ratio gradually changes across the film, being La rich at film/substrate interface and La depleted at free surface; Mn valence state changes accordingly. These observations suggest that a strongly orientation-dependent adaptative composition mechanism dominates stress accommodation in manganite films and provides microscopic understanding of their dissimilar magnetic properties.
dc.format.extent3 p.
dc.format.mimetypeapplication/pdf
dc.identifier.idgrec561119
dc.identifier.issn0003-6951
dc.identifier.urihttps://hdl.handle.net/2445/32274
dc.language.isoeng
dc.publisherAmerican Institute of Physics
dc.relation.isformatofReproducció del document publicat a: http://dx.doi.org/10.1063/1.2981574
dc.relation.ispartofApplied Physics Letters, 2008, vol. 93, num. 3, p. 112505-1-112505-3
dc.relation.urihttp://dx.doi.org/10.1063/1.2981574
dc.rights(c) American Institute of Physics , 2008
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.sourceArticles publicats en revistes (Enginyeria Electrònica i Biomèdica)
dc.subject.classificationPropietats magnètiques
dc.subject.classificationPel·lícules fines
dc.subject.classificationEspintrònica
dc.subject.classificationEspectroscòpia de pèrdua d'energia d'electrons
dc.subject.otherMagnetic properties
dc.subject.otherThin films
dc.subject.otherSpintronics
dc.subject.otherElectron energy loss spectroscopy
dc.titleCationic and charge segregation in La2/3Ca1/3MnO3 thin films grown on (001) and (110) SrTiO3.eng
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion

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