(2005) Journal of Physics D: Applied Physics — Vol. 38, n° 6, p. 909-914 (2005)
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Authors
Mallet, J.
Author
Yu-Zhang, K.
Author
Mátéfi-Tempfli, StefanUCLouvain
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Mátéfi-Tempfli, Maria-RitaUCLouvain
Author
Piraux, LucUCLouvain
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Abstract
Arrays of face-centred cubic (fcc) CoxPt1-x (0.45 < x < 0.55) nanowires were electrodeposited into thin film nanoporous alumina supported on a Si substrate. The heat treatment under specific conditions was then carried out in order to transform the fcc phase into the face-centred tetragonal or L1(0) ordered phase. The influence of both the phase transition and the temperature on the magnetic properties of CoxPt1-x nanowires has been studied. Coercive fields higher than 1 T (10 kOe) have been obtained at room temperature with ordered nanowires, 80 nm in diameter.