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Magnetism and half-metallicity at the O surfaces of ceramic oxides

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dc.contributor.authorGallego, S.
dc.contributor.authorBeltrán Fínez, Juan Ignacio
dc.contributor.authorCerdá, J.
dc.contributor.authorMuñoz, María del Carmen
dc.date.accessioned2023-06-20T10:57:35Z
dc.date.available2023-06-20T10:57:35Z
dc.date.copyright© 2005 IOP Publishing Ltd. This work has been partially financed by the Spanish Ministerio de Educación y Ciencia and the DGICyT under contracts MAT2003-04278, MAT2004-05348 and CAM2004-0440, and by the Ramón y Cajal program. J.I. B. acknowledges financial support from the I3P program of the CSIC.
dc.date.issued2005-11-02
dc.description.abstractThe occurrence of spin polarization at ZrO2, Al2O3 and MgO surfaces is proved by means of ab initio calculations within the density functional theory. Large spin moments, as high as 1.56 mu(B), develop at O-ended polar terminations, transforming the non-magnetic insulator into a half-metal. The magnetic moments mainly reside in the surface oxygen atoms and their origin is related to the existence of 2p holes of well defined spin polarization at the valence band of the ionic oxide. The direct relation between magnetization and local loss of donor charge makes it possible to extend the magnetization mechanism beyond surface properties.en
dc.description.departmentDepto. de Estructura de la Materia, Física Térmica y Electrónica
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipMinisterio de Educación, Formación Profesional y Deportes (España)
dc.description.sponsorshipDirección General de Investigación Científica y Técnica (España)
dc.description.sponsorshipRamón y Cajal program
dc.description.sponsorshipI3P program of the CSIC
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/31427
dc.identifier.citationGallego, S., Beltrán Fínez, J. I., Cerdá, J. & Muñoz, M. C. «Magnetism and half-metallicity at the O surfaces of ceramic oxides». Journal of Physics: Condensed Matter, vol. 17, n.o 43, noviembre de 2005, pp. L451-57. DOI.org (Crossref), https://doi.org/10.1088/0953-8984/17/43/L04.
dc.identifier.doi10.1088/0953-8984/17/43/L04
dc.identifier.essn1361-648X
dc.identifier.issn0953-8984
dc.identifier.officialurlhttp://dx.doi.org/10.1088/0953-8984/17/43/L04
dc.identifier.relatedurlhttps://iopscience.iop.org/article/10.1088/0953-8984/17/43/L04
dc.identifier.urihttps://hdl.handle.net/20.500.14352/51515
dc.issue.number43
dc.journal.titleJournal of physics-condensed matter
dc.language.isoeng
dc.page.total6
dc.publisherIop Publishing Ltd
dc.relation.projectIDMAT2003-04278
dc.relation.projectIDMAT2004-05348
dc.relation.projectIDCAM2004-0440
dc.rights.accessRightsopen access
dc.subject.cdu537
dc.subject.keywordRoom-temperature
dc.subject.keywordSemiconductor surfaces
dc.subject.keywordZirconica
dc.subject.keywordFilms
dc.subject.keywordGrowth
dc.subject.keywordZrO2
dc.subject.keywordMicroscopy.
dc.subject.ucmElectricidad
dc.subject.ucmElectrónica (Física)
dc.subject.ucmFísica del estado sólido
dc.subject.unesco2202.03 Electricidad
dc.subject.unesco2211 Física del Estado Sólido
dc.titleMagnetism and half-metallicity at the O surfaces of ceramic oxidesen
dc.typejournal article
dc.volume.number17
dspace.entity.typePublication
relation.isAuthorOfPublication4e2ad5cb-9ebe-40f4-8dcb-6d6f60066da5
relation.isAuthorOfPublication.latestForDiscovery4e2ad5cb-9ebe-40f4-8dcb-6d6f60066da5

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