The increasing research attention towards magnetic nanoparticles has been driven by interest in advanced device and biomolecular technologies. Particle size and crystal microstructure represent key structural aspects in achieving optimum performance of nanoparticle systems. To date these relationships have been studied in sputtered alloy nanoparticle thin films. In this paper, we report the relationships between the thermal annealing parameters and the physical and magnetic characteristics of CoPt alloy nanoparticles.

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