Ferromagnetism in transparent thin films of MgO
| dc.contributor.author | Martínez-Boubeta, C. | |
| dc.contributor.author | Beltrán Fínez, Juan Ignacio | |
| dc.contributor.author | Balcells, Ll. | |
| dc.contributor.author | Konstantinović, Z. | |
| dc.contributor.author | Valencia, S. | |
| dc.contributor.author | Schmitz, D. | |
| dc.contributor.author | Arbiol, J. | |
| dc.contributor.author | Estrade, S. | |
| dc.contributor.author | Cornil, J. | |
| dc.contributor.author | Martínez, B. | |
| dc.date.accessioned | 2023-06-20T03:55:50Z | |
| dc.date.available | 2023-06-20T03:55:50Z | |
| dc.date.issued | 2010-07-08 | |
| dc.description | © 2010 The American Physical Society. We gratefully acknowledge financial support from the Spanish MICINN Grant No. MAT2009-08024 and Consolider-Ingenio Program Grant No. CSD2007-00041. Z. Konstantinović and C. Martínez-Boubeta are supported through the Ramón y Cajal program. We also thank A. Cebollada and V. Martínez for the careful reading of the manuscript | |
| dc.description.abstract | We show both theoretical and experimental evidences of the appearance of ferromagnetism in MgO thin films. First principles calculations allow predicting the possibility of the formation of a local moment in MgO, provided the existence of Mg vacancies which create holes on acceptor levels near the O 2p-dominated valence band. Magnetic measurements evidence of the existence of room-temperature ferromagnetism in MgO thin films. High-resolution transmission electron microscopy demonstrates the existence of cation vacancies in our samples. Finally, by applying the element specificity of the x-ray magnetic circular dichroism technique, we also demonstrate that the magnetic moments of the system arise from the spin polarization of the 2p electrons of oxygen atoms surrounding Mg vacancies. | |
| dc.description.department | Depto. de Estructura de la Materia, Física Térmica y Electrónica | |
| dc.description.faculty | Fac. de Ciencias Físicas | |
| dc.description.refereed | TRUE | |
| dc.description.sponsorship | Ministerio de Ciencia e Innovación (MICINN) | |
| dc.description.sponsorship | Consolider-Ingenio Program | |
| dc.description.sponsorship | Ramón y Cajal program | |
| dc.description.status | pub | |
| dc.eprint.id | https://eprints.ucm.es/id/eprint/31383 | |
| dc.identifier.doi | 10.1103/PhysRevB.82.024405 | |
| dc.identifier.issn | 1098-0121 | |
| dc.identifier.officialurl | http://dx.doi.org/10.1103/PhysRevB.82.024405 | |
| dc.identifier.relatedurl | http://journals.aps.org/ | |
| dc.identifier.uri | https://hdl.handle.net/20.500.14352/44684 | |
| dc.issue.number | 2 | |
| dc.journal.title | Physical review B | |
| dc.language.iso | eng | |
| dc.publisher | American Physical Society | |
| dc.relation.projectID | MAT2009-08024 | |
| dc.relation.projectID | CSD2007-00041 | |
| dc.rights.accessRights | open access | |
| dc.subject.cdu | 537 | |
| dc.subject.keyword | V-center | |
| dc.subject.keyword | Centers | |
| dc.subject.keyword | Surface | |
| dc.subject.keyword | Semiconductors | |
| dc.subject.keyword | Stability | |
| dc.subject.keyword | Vacancies | |
| dc.subject.keyword | Defects | |
| dc.subject.keyword | Oxide | |
| dc.subject.keyword | TiO2. | |
| dc.subject.ucm | Electricidad | |
| dc.subject.ucm | Electrónica (Física) | |
| dc.subject.unesco | 2202.03 Electricidad | |
| dc.title | Ferromagnetism in transparent thin films of MgO | |
| dc.type | journal article | |
| dc.volume.number | 82 | |
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| dspace.entity.type | Publication | |
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| relation.isAuthorOfPublication.latestForDiscovery | 4e2ad5cb-9ebe-40f4-8dcb-6d6f60066da5 |
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