Geometrically defined spin structures in ultrathin Fe3O4 with bulk like magnetic properties

We have grown high quality magnetite microcrystals free from antiphase boundaries on Ru(0001) by reactive molecular beam epitaxy, conserving bulk magnetic properties below 20 nm thickness. Magnetization vector maps are obtained by X-ray spectromicroscopy and compared with micromagnetic simulations....

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Detalles Bibliográficos
Autores: Ruiz-Gómez, Sandra|||0000-0002-9665-2059, Pérez, Lucas|||0000-0001-9470-7987, Mascaraque, Arantzazu, Quesada, Adrian, Prieto Recio, Pilar|||0000-0001-8978-5139, Palacio, Irene|||0000-0002-3345-4848, Martín García, Laura|||0000-0001-5743-4473, Foerster, Michael|||0000-0002-4147-6668, Aballe, Lucía|||0000-0003-1810-8768, Figuera, Juan de la|||0000-0002-7014-4777
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:202518
Acceso en línea:https://ddd.uab.cat/record/202518
https://dx.doi.org/urn:doi:10.1039/c7nr07143d
Access Level:acceso abierto
Palabra clave:Antiphase boundaries
Crystalline anisotropy
Domain configurations
Magnetite microcrystals
Magnetization vector
Micromagnetic simulations
Shape anisotropy
X-ray spectromicroscopy
Descripción
Sumario:We have grown high quality magnetite microcrystals free from antiphase boundaries on Ru(0001) by reactive molecular beam epitaxy, conserving bulk magnetic properties below 20 nm thickness. Magnetization vector maps are obtained by X-ray spectromicroscopy and compared with micromagnetic simulations. The observed domain configurations are dictated purely by shape anisotropy, overcoming the possible influences of (magneto)crystalline anisotropy and defects, thus demonstrating the possibility of designing spin structures in ultrathin, magnetically soft magnetite at will.

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