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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.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.publisherAmerican Institute of Physics-
dc.relation.isformatofReproducció del document publicat a:
dc.relation.ispartofApplied Physics Letters, 2008, vol. 93, num. 3, p. 112505-1-112505-3-
dc.rights(c) American Institute of Physics , 2008-
dc.subject.classificationPropietats magnètiques-
dc.subject.classificationPel·lícules fines-
dc.subject.classificationEspectroscòpia de pèrdua d'energia d'electrons-
dc.subject.otherMagnetic properties-
dc.subject.otherThin films-
dc.subject.otherElectron energy loss spectroscopy-
dc.titleCationic and charge segregation in La2/3Ca1/3MnO3 thin films grown on (001) and (110) SrTiO3.eng
Appears in Collections:Articles publicats en revistes (Electrònica)

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