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dc.contributor.authorHerranz Casabona, Gervasicat
dc.contributor.authorSánchez Barrera, Florenciocat
dc.contributor.authorFontcuberta i Griñó, Josepcat
dc.contributor.authorLaukhin, Vladimircat
dc.contributor.authorGarcía-Cuenca Varona, María Victoriacat
dc.contributor.authorFerrater Martorell, Cèsarcat
dc.contributor.authorVarela Fernández, Manuel, 1956-cat
dc.description.abstractThe transport and magnetotransport properties of the metallic and ferromagnetic SrRuO3 (SRO) and the metallic and paramagnetic LaNiO3 (LNO) epitaxial thin films have been investigated in fields up to 55 T at temperatures down to 1.8 K . At low temperatures both samples display a well-defined resistivity minimum. We argue that this behavior is due to the increasing relevance of quantum corrections to the conductivity (QCC) as temperature is lowered; this effect being particularly relevant in these oxides due to their short mean free path. However, it is not straightforward to discriminate between contributions of weak localization and renormalization of electron-electron interactions to the QCC through temperature dependence alone. We have taken advantage of the distinct effect of a magnetic field on both mechanisms to demonstrate that in ferromagnetic SRO the weak-localization contribution is suppressed by the large internal field leaving only renormalized electron-electron interactions, whereas in the nonmagnetic LNO thin films the weak-localization term is relevant.eng
dc.publisherThe American Physical Societycat
dc.relation.isformatofReproducció digital del document publicat en format paper, proporcionada per PROLA i
dc.relation.ispartofPhysical Review B, 2005, vol. 72, p. 014457 1-6cat
dc.rights(c) The American Physical Society, 2005cat
dc.sourceArticles publicats en revistes (Física Aplicada)-
dc.subject.classificationMatèria condensadacat
dc.subject.classificationSuperfícies (Física)cat
dc.subject.classificationPropietats magnètiquescat
dc.subject.otherElectronic transport in condensed mattereng
dc.subject.otherElectronic structure and electrical properties of surfaceseng
dc.titleMagnetic field effect on quantum corrections to the low-temperature conductivity in mettalic perovskite oxideseng
Appears in Collections:Articles publicats en revistes (Física Aplicada)

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