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dc.contributor.authorCossu, Fabrizio
dc.contributor.authorColizzi, G.
dc.contributor.authorFilippetti, A.
dc.contributor.authorFiorentini, Vincenzo
dc.contributor.authorSchwingenschlögl, Udo
dc.date.accessioned2014-04-13T14:32:11Z
dc.date.available2014-04-13T14:32:11Z
dc.date.issued2013-06-21
dc.identifier.citationCossu F, Schwingenschlögl U, Colizzi G, Filippetti A, Fiorentini V (2013) Surface antiferromagnetism and incipient metal-insulator transition in strained manganite films. Phys Rev B 87. doi:10.1103/PhysRevB.87.214420.
dc.identifier.issn1098-0121
dc.identifier.issn1550-235X
dc.identifier.doi10.1103/PhysRevB.87.214420
dc.identifier.urihttp://hdl.handle.net/10754/315800
dc.description.abstractUsing first-principles calculations, we show that the (001) surface of the ferromagnet La0.7Sr0.3MnO3 under an epitaxial compressive strain favors antiferromagnetic (AF) order in the surface layers, coexisting with ferromagnetic (FM) bulk order. Surface antiferromagnetism is accompanied by a very marked surface-related spectral pseudogap, signaling an incomplete metal-insulator transition at the surface. The different relaxation and rumpling of the MnO2 and LaO surface planes in the two competing magnetic phases cause distinct work-function changes, which are of potential diagnostic use. The AF phase is recognized as an extreme surface-assisted case of the combination of in-plane AF super-exchange and vertical FM double-exchange couplings that rules magnetism in manganites under in-plane compression.
dc.language.isoen
dc.publisherAmerican Physical Society (APS)
dc.relation.urlhttp://link.aps.org/doi/10.1103/PhysRevB.87.214420
dc.relation.urlhttp://arxiv.org/abs/1212.5038
dc.rightsArchived with thanks to Physical Review B
dc.titleSurface antiferromagnetism and incipient metal-insulator transition in strained manganite films
dc.typeArticle
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.contributor.departmentComputational Physics and Materials Science (CPMS)
dc.identifier.journalPhysical Review B
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionCNR-IOM and Dipartimento di Fisica, Università di Cagliari, I-09042 Monserrato (Ca), Italy
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)
dc.identifier.arxividarXiv:1212.5038
kaust.personCossu, Fabrizio
kaust.personSchwingenschlögl, Udo
refterms.dateFOA2018-06-14T04:16:01Z


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