O. Akdogan, W. Li, B. Balasubramanian, D. J. Sellmyer and G. C. Hadjipanayis Effect of Exchange Interactions on the Coercivity of SmCo5 Nanoparticles Made by Cluster Beam Deposition Advanced Functional Materials 23
The effect of SmCo5 nanoparticle dispersion in a carbon matrix on the coercivity is investigated. Poor dispersion of these nanoparticles results in a moderate room temperature coercivity of ≈1 kOe. By increasing the interparticle distance substantially, coercivity increases up to 12 kOe due to the overall anisotropy increase with the decrease in exchange interactions according to the random anisotropy model.
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