Magnetic and transport properties of Ag/Co 90Fe 10 granular multilayers

En:

J Appl Phys 2004;96(12):7392-7398

Fecha:

2004

Formato:

application/pdf

Tipo de documento:

info:eu-repo/semantics/article
info:ar-repo/semantics/artículo
info:eu-repo/semantics/publishedVersion

Descriptores:

Current-in-plane configuration (CIP) -  Ferromagnetic resonance spectroscopy -  Magnetic clusters -  Magnetic layers -  Cobalt compounds -  Electric conductivity -  Ferromagnetic resonance -  Granular materials -  Iron compounds

Descripción:

We report experimental results on the magnetic and transport properties of Ag/Co 90Fe 10 multilayers with variable Ag and Co 90Fe 10 thicknesses. The magnetism samples was characterized by magnetization measurements and ferromagnetic resonance spectroscopy. These measurements show that the magnetic layers are in general composed by single-domain particles and that the shape and the size of the magnetic clusters can be changed by using an applied magnetic field (H dep) on deposition. The resistivity of these multilayered systems is described by a mixed model that includes current-in-plane and current perpendicular plane transport contributions. The transport model proposed to explain the experimental results emphasizes the role played by the magnetic entities on the scattering processes and strongly depends on the silver layer thickness. An electrical percolative transition is observed for samples grown at H dep>H* dep while the magnetic properties of these samples still show a granularlike behavior. © 2004 American Institute of Physics.
Fil:Milano, J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Llois, A.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.

Identificador(es):

http://hdl.handle.net/20.500.12110/paper_00218979_v96_n12_p7392_Milano

Derechos:

info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/2.5/ar