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The fct L1 0-FeNi alloy is a promising candidate for the development of high performance critical-elements-free magnetic materials. Among the different materials, the Au-Cu-Ni alloy has resulted very promising; however, a detailed investigation of the effect of the buffer-layer composition on the formation of the hard FeNi phase is still missing. To accelerate the search of the best Au-Cu-Ni composition, a combinatorial approach based on High-Throughput (HT) experimental methods has been exploited in this paper. HT magnetic characterization methods revealed the presence of a hard magnetic phase with an out-of-plane easy-axis, whose coercivity increases from 0.49 kOe up to 1.30 kOe as the Au content of the Cu-Au-Ni buffer-layer decreases. Similarly, the out-of-plane magneto-crystalline anisotropy energy density increases from 0.12 to 0.35 MJ/m 3. This anisotropy is attributed to the partial formation of the L1 0 …
Nature Publishing Group
Publication date: 
29 Oct 2018

G Giannopoulos, G Barucca, A Kaidatzis, V Psycharis, R Salikhov, M Farle, E Koutsouflakis, D Niarchos, A Mehta, M Scuderi, G Nicotra, C Spinella, S Laureti, G Varvaro

Biblio References: 
Volume: 8 Issue: 1 Pages: 15919
Scientific reports