  Ordered FePdCu nanoisland arrays were formed by annealing at 600oC, which
caused solid state dewetting of [Cu/Fe/Pd] multilayers deposited on
self-assembled SiO2 nanospheres with size of 100 nm. A single FePdCu island was
formed on the top of each SiO2 nanosphere. The structure of the obtained system
was studied by x-ray diffraction (XRD), while its magnetic properties by SQUID
magnetometry. Partially ordered L10 alloy appeared in the annealed films,
leading to magnetic hardening of the material. The paper presents the influence
of the patterning on the system properties. It is shown that templated
dewetting is a method providing nanoislands with well controlled sizes and
positions. The role of copper admixture in controlling the structural and
magnetic properties is also discussed.
