Nanometer Scale Hard/soft Bilayer Magnetic Antidots

Béron, F.; Kaidatzis, A.; Velo, M. F.; Arzuza, L. C. C.; Palmero, E. M.; Del Real, R. P.; Niarchos, D.; Pirota, K. R.; García-Martín, J. M.

Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/327955

Type:	Artigo
Title:	Nanometer Scale Hard/soft Bilayer Magnetic Antidots Nanometer scale hard/soft bilayer magnetic antidots
Author:	Béron, F. Kaidatzis, A. Velo, M. F. Arzuza, L. C. C. Palmero, E. M. Del Real, R. P. Niarchos, D. Pirota, K. R. García-Martín, J. M.
Abstract:	The effect of arrays of nanometer scale pores on the magnetic properties of thin films has been analyzed. Particularly, we investigated the influence of the out-of-plane magnetization component created by the nanopores on the in-plane magnetic behavior of patterned hard/soft magnetic thin films in antidot morphology. Its influence on the coupling in Co/Py bilayers of few tens of nanometer thick is compared for disordered and ordered antidots of 35-nm diameter. The combination of magneto-optical Kerr effect (MOKE) and first-order reversal curve (FORC) technique allows probing the effects of the induced perpendicular magnetization component on the bilayer magnetic behavior, while magnetic force microscopy (MFM) is used to image it. We found that ordered antidots yield a stronger out-of-plane component than disordered ones, influencing in a similar manner the hard layer global in-plane magnetic behavior if with a thin or without soft layer. However, its influence changes with a thicker soft layer, which may be an indication of a weaker coupling. The effect of arrays of nanometer scale pores on the magnetic properties of thin films has been analyzed. Particularly, we investigated the influence of the out-of-plane magnetization component created by the nanopores on the in-plane magnetic behavior of patterned hard/soft magnetic thin films in antidot morphology. Its influence on the coupling in Co/Py bilayers of few tens of nanometer thick is compared for disordered and ordered antidots of 35-nm diameter. The combination of magneto-optical Kerr effect (MOKE) and first-order reversal curve (FORC) technique allows probing the effects of the induced perpendicular magnetization component on the bilayer magnetic behavior, while magnetic force microscopy (MFM) is used to image it. We found that ordered antidots yield a stronger out-of-plane component than disordered ones, influencing in a similar manner the hard layer global in-plane magnetic behavior if with a thin or without soft layer. However, its influence changes with a thicker soft layer, which may be an indication of a weaker coupling.
Subject:	Exchange-spring Magnets Structured Magnetic Thin Films Magnetic Antidot Arrays First-order Reversal Curve (forc) Magneto-optical Kerr Effect (moke) Estruturas magnéticas, Filmes finos, Curva de inversão de primeira ordem, Kerr, Efeito de
Country:	Alemanha
Editor:	Springer
Citation:	Nanoscale Research Letters. Springer, v. 11, p. , 2016.
Rights:	aberto
Identifier DOI:	10.1186/s11671-016-1302-3
Address:	https://link.springer.com/article/10.1186/s11671-016-1302-3
Date Issue:	2016
Appears in Collections:	IFGW - Artigos e Outros Documentos

Files in This Item:

File	Size	Format
000377814600001.pdf	1.76 MB	Adobe PDF	View/Open

Show full item record Recommend this item