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Artículo

Magnetic properties of Zn-ferrites obtained from multilayer film deposited by sputtering

Salcedo Rodriguez, Karen LizethIcon ; Golmar, FedericoIcon ; RodrÍguez Torres, Claudia ElenaIcon
Fecha de publicación: 08/2013
Editorial: Institute of Electrical and Electronics Engineers
Revista: IEEE Transactions on Magnetics
ISSN: 0018-9464
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Física de los Materiales Condensados

Resumen

Epitaxial ZnFe2O4 thin films were deposited on monocrystalline MgO substrate by dc-sputtering. Ferrites were grown from Zn-O and Fe-O multilayers starting from metallic targets in oxygen atmosphere. The number and thickness of layers were varied holding constant the total thickness (50 nm) and sample stoichiometry (Fe/Zn=2). The samples were structural and magnetically characterized by X-ray diffraction and magnetic measurements, respectively. Thin film fabricated using 20 bilayers of thickness 3 nm present a magnetic behavior similar to bulk ZnFe2O4, with a Néel temperature TN=10.5 K. The magnetic behavior of those films obtained from thicker bilayers (6 and 10 nm) is characterized by the coexistence of antiferro and ferromagnetic regions. This is probably due to the inhomogeneities in Zn and Fe distributions caused by an incomplete interdiffusion process prevented by the relatively large multilayer thickness. These inhomogeneities probably generate zinc-iron position replacements and interrupt the long-range antiferromagnetic order, giving rise to ferromagnetic clusters coexisting with the antiferromagnetic component.
Palabras clave: DC-SPUTTERING , DILUTED ANTIFERROMAGNETISM (DAFF) SYSTEM , FERRITE FILM , MAGNETIC ANALYSIS
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/86397
URL: https://ieeexplore.ieee.org/document/6566202
DOI: http://dx.doi.org/10.1109/TMAG.2013.2260529
Colecciones
Articulos(IFLP)
Articulos de INST.DE FISICA LA PLATA
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Citación
Salcedo Rodriguez, Karen Lizeth; Golmar, Federico; RodrÍguez Torres, Claudia Elena; Magnetic properties of Zn-ferrites obtained from multilayer film deposited by sputtering; Institute of Electrical and Electronics Engineers; IEEE Transactions on Magnetics; 49; 8; 8-2013; 4559-4561
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