Abstract:
The films of Pd, Ni, and a Ni–Pd alloy have been obtained by pulsed laser ablation of Ni–Pd composite targets and characterized by electron diffraction, transmission electron microscopy, and vibrating-sample magnetometry techniques. It is established that a nonmagnetic metastable hexagonal phase is formed in Ni and Ni–Pd films. Upon annealing, these films acquire an equilibrium cubic structure and exhibit hysteresis during the magnetization reversal. The dependence of the solid-solution lattice constant on the concentration exhibits a positive deviation from Vegard’s law, which is characteristic of alloys with concave liquidus curves.
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