Abstract
Nanocomposite (Pr0.17Co0.83)69C31 thin films were prepared by pulsed filtered vacuum arc deposition. Rapid thermal annealing was performed at various temperatures in argon. The variations of the structure and magnetic properties of these films with various annealing temperatures were studied systematically. The sample annealed at 700 °C for 1 min shows a large coercivity of 5.2 kOe and a small grain size of 7.8 nm. The overall small negative ΔM of this film indicates that virtually all the Pr0.17Co0.83 grains are isolated single domain particles with only weak dipolar interactions among them. These results indicate that (Pr0.17Co0.83)69C31 nanocomposite thin films would be a promising candidate for high-density magnetic recording medium applications.
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