Title :
Magnetic Anisotropy Dispersion in CoPt Nanoparticles: An Evaluation Using the NÉel Model
Author :
Tournus, Florent ; Rohart, Stanislas ; Dupuis, V?©ronique
Author_Institution :
CNRS, Univ. de Lyon, Villeurbanne
Abstract :
Various contributions to the magnetic anisotropy energy (MAE) dispersion for an assembly of CoPt nanoparticles are examined, using the empirical Neel anisotropy model. It is shown that, while small shape and composition variations have negligible effects, the statistical distribution of chemical arrangements can be the major source of MAE dispersion.
Keywords :
cobalt alloys; magnetic anisotropy; nanoparticles; platinum alloys; statistical distributions; CoPt; MAE; empirical Neel anisotropy model; magnetic anisotropy energy dispersion; nanoparticles; statistical distribution; Cobalt alloys; magnetic anisotropy; magnetic materials;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2008.2002776
