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Please use this identifier to cite or link to this item: https://libeldoc.bsuir.by/handle/123456789/29124
Title: Effect of flattened surface morphology of anodized aluminum oxide templates on the magnetic properties of nanoporous Co/Pt and Co/Pd thin multilayered films
Authors: Anh Nguyen, T. N.
Fedotova, J.
Kasiuk, J. V.
Bayev, V. G.
Kupreeva, O. V.
Lazarouk, S. K.
Manh, D. H.
Vu, D. L.
Chung, S.
Åkerman, J.
Altynov, V.
Maximenko, A.
Keywords: публикации ученых;antidots;perpendicular magnetic anisotropy;percolated perpendicular media;Co/Pd multilayers;Co/Pt multilayers;porous anodic aluminum oxide templates
Issue Date: 2018
Publisher: Elsevier
Citation: Effect of flattened surface morphology of anodized aluminum oxide templates on the magnetic properties of nanoporous Co/Pt and Co/Pd thin multilayered films / T. N. Anh Nguyen and other // Applied Surface Science. – 2018. – V. 427, Part B. – P. 649 – 655. – DOI: https://doi.org/10.1016/j.apsusc.2017.08.238
Abstract: For the first time, nanoporous Al2O3 templates with smoothed surface relief characterized by flattened interpore areas were used in the fabrication of Co/Pd and Co/Pt multilayers (MLs) with strong perpendicular magnetic anisotropy (PMA). Alternating gradient magnetometry (AGM) revealed perfectly conserved PMA in the Co/Pd and Co/Pt porous MLs (antidot arrays) with a ratio of remanent magnetization (Mr) to saturation magnetization (MS) of about 0.99, anisotropy fields (Ha) of up to 2.6 kOe, and a small deviation angle of 8° between the easy magnetization axis and the normal to the film surface. The sufficient magnetic hardening of the porous MLs with enhanced coercive field HC of up to ∼1.9 kOe for Co/Pd and ∼1.5 kOe for Co/Pt MLs, as compared to the continuous reference samples (∼1.5–2 times), is associated with the pinning of the magnetic moments on the nanopore edges. Application of the Stoner–Wohlfarth model for fitting the experimental M/MS(H) curves yielded clear evidence of the predominantly coherent rotation mechanism of magnetization reversal in the porous films.
URI: https://libeldoc.bsuir.by/handle/123456789/29124
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