Surface states of FeF<sub>2</sub> (110) and its uncompensated magnetization

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dc.contributor.authorMunoz, F.
dc.contributor.authorRomero, A. H.
dc.contributor.authorMejia-Lopez, J.
dc.contributor.authorRoshchin, Igor V.
dc.contributor.authorGonzalez, R. I.
dc.contributor.authorKiwi, M.
dc.date.accessioned2025-01-23T21:34:52Z
dc.date.available2025-01-23T21:34:52Z
dc.date.issued2015
dc.description.abstractThe (110) surface of iron fluoride (FeF2) is especially relevant to the understanding of the exchange bias phenomenon, which has important applications in the sensor industry, and has been extensively explored, both theoretically and experimentally. Here we investigate this FeF2 surface by means of oh mine techniques. We compute the (110) surface reconstruction, energetics, magnetic moments, band structure, charge density and electron localization function, for the two possible terminations (Fe and F). The surface reconstruction modifies the atomic and electronic structure of the free surface, yielding magnetism of a magnitude of 0.1 mu(B) per surface unit cell. Moreover, the charge density also changes, which alters the bonding in the vicinity of the surface. All these changes are expected to be relevant for exchange bias, that is once a ferromagnetic layer is deposited on the FeF2 surface. (C) 2015 Elsevier B.V. All rights reserved.
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.jmmm.2015.05.064
dc.identifier.eissn1873-4766
dc.identifier.issn0304-8853
dc.identifier.urihttps://doi.org/10.1016/j.jmmm.2015.05.064
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/101544
dc.identifier.wosidWOS:000357652800039
dc.language.isoen
dc.pagina.final232
dc.pagina.inicio226
dc.revistaJournal of magnetism and magnetic materials
dc.rightsacceso restringido
dc.titleSurface states of FeF<sub>2</sub> (110) and its uncompensated magnetization
dc.typeartículo
dc.volumen393
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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