Artículo
Magnetic coupling of stripe domains in FePt/Ni80Fe20 bilayers
Alvarez, Nadia Roxana
; Gomez, Javier Enrique
; Vasquez Mansilla, Marcelo
; Pianciola, Betiana Noelia
; Actis, Daniel Guillermo
; Gilardi, Gonzalo José
; Leiva, L.; Milano, Julian
; Butera, Alejandro Ricardo
Fecha de publicación:
13/02/2017
Editorial:
IOP Publishing
Revista:
Journal of Physics D: Applied Physics
ISSN:
0022-3727
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Equiatomic FePt in the A1 soft magnetic phase and Ni80Fe20 (permalloy) thin films form a stripe-like magnetic domain structure above a critical thickness. This critical thickness is considerably different in the two alloys and allows us to study the influence of the magnetic coupling in the domain configuration in bilayers. Using dc magnetron sputtering techniques, we fabricated two different sets of FePt/Ni80Fe20 bilayers, keeping one thickness fixed and varying the other, and investigated the dc magnetic properties and the magnetic domain configuration of the structure. In all cases, magnetization reversal occurred at a single coercive field, indicating a relatively strong magnetic exchange coupling between both layers. The observed stripe period was also consistent with a model of spring magnet-like behavior. However, for certain values of FePt and permalloy thickness a complex nonparallel double stripe structure was found, which may be attributed to the influence of the dipolar stray field of the thicker layer on the stripe structure of the thinner film.
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CCT - BAHIA BLANCA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - BAHIA BLANCA
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - BAHIA BLANCA
Articulos(CCT - PATAGONIA NORTE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Articulos(IFLP)
Articulos de INST.DE FISICA LA PLATA
Articulos de INST.DE FISICA LA PLATA
Citación
Alvarez, Nadia Roxana; Gomez, Javier Enrique; Vasquez Mansilla, Marcelo; Pianciola, Betiana Noelia; Actis, Daniel Guillermo; et al.; Magnetic coupling of stripe domains in FePt/Ni80Fe20 bilayers; IOP Publishing; Journal of Physics D: Applied Physics; 50; 11; 13-2-2017; 115001-115010
Compartir
Altmétricas