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Title: Faraday effect and fragmentation of ferromagnetic layers in multilayer Co/Cu(1 1 1) nanofilms
Author: Lukienko, Irene N.
Kharchenko, Mykola F.
Fedorchenko, Alexey V.
Kharlan, Ivan A.
Tutakina, Olga P.
Stetsenko, Olexandr N.
Neves, Cristina S.
Salak, Andrei N.
Keywords: Multilayer Co/Cu nanofilms
Faraday effect
Superparamagnetic clusters
Quantum size effect
Fragmentation of nanoscale magnetic layers
Issue Date: 1-Jul-2020
Publisher: Elsevier
Abstract: With purpose to investigate influence of magnetically non-active metal layers on the Faraday effect in multilayer Ferromagnetic/Normal metal films, dependences of the Faraday rotation angles of the light polarization plane on magnetic field have been studied in multilayer [Co/Cu] nanofilms. It was revealed that the Faraday rotation φ varies with thickness of the Cu layers dCu. This φ(dCu) dependence consists of the monotonic component, namely a gradual rise of the angle with increase of dCu, and the non-monotonic one represented by two minima. The monotonic changes of the Faraday rotation were satisfactory described in frames of the effective medium method. Two minima are explained with the Co layer’s fragmentation due to influence of size electron quantization in the Cu layers on formation of Co clusters during deposition of the films.
Peer review: yes
DOI: 10.1016/j.jmmm.2020.166706
ISSN: 0304-8853
Appears in Collections:CICECO - Artigos
DEMaC - Artigos

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