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Título : Magnetic anisotropy and intergrain interactions in L10 CoPt (111)/Pt(111)/MgO(100) PLD granular films with tilted easy axes
Autor : Varvaro, G., Agostinelli, E., Laureti, S., Testa, A. M., García-Martín, José Miguel, Briones Fernández-Pola, Fernando, Fiorani, D.
Palabras clave : Perpendicular anisotropy
Magnetic nanostructures
Magnetic domains
Fecha de publicación : 19-Jun-2008
Editor: Institute of Physics Publishing
Resumen: The magnetic properties of tilted easy axis L10 CoPt(1 1 1)/Pt(1 1 1)/MgO(1 0 0) film, deposited by pulsed laser deposition, were investigated by magnetization angular dependence measurements and magnetic force microscopy (MFM). The room temperature anisotropy constant, evaluated measuring the in-plane variation of transverse magnetization under a rotating magnetic field, is K1 = 5 × 106 erg cm−3. The domain structure, observed by MFM, consists of decoupled single domain grains, unlike the maze-like structure usually observed for similar systems. This was confirmed by the analysis of dc demagnetization and isothermal remanence magnetization curves, which provided evidence of predominant magnetostatic interactions.
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ISSN: 0022-3727
DOI: 10.1088/0022-3727/41/13/134017
Citación : Journal of Physics D: Applied Physics, 41 (2008)
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