Interface effect on the magnetic anisotropy of CoPt clusters

Magnetic anisotropic of thermally evaporated FeNi thin film: A soft X‐ray magnetic circular dichroism study

“…Thus, the strong MAE in L 1 0 ‐FeNi thin films could we well explained by tight‐binding approximation. We also note that this result is consistent with theoretical calculation by Miura et al 26 However, there may be some possibilities to control the magnetic anisotropy by interface as Rohart et al study the interface effect on the magnetic anisotropy of CoPt clusters 27 …”

Size effects in the magnetic anisotropy of embedded cobalt nanoparticles: from shape to surface

“…For such systems a large number of experiments have significantly advanced our knowledge but the complexity of the possible variations of both geometric and electronic structure of the cluster due to the interactions with the support or the matrix are responsible for the large number of open questions and contradictions. Especially the magnetic anisotropy energy (MAE) is very sensitive on the cluster size as well as on geometric distortions and alloying or electronic hybridization at the interface 6 7 8 9 . The MAE is the energy needed to reverse the nanoparticle magnetization and is commonly defined as with the effective anisotropy constant K eff and the volume V .…”

Dynamic magnetic characterization and magnetic particle imaging enhancement of magnetic-gold core–shell nanoparticles

“…37,38 Therefore, the magnetic anisotropy energy of nanoparticles is affected by various parameters including particle size, dipole-dipole interactions, distortions, and electronic hybridization at the nanoparticle interface, assuming a fixed chemical composition. 39,40 The anisotropy constant of MNPs has been reported to differ from that of bulk and varies with the particle size. 41,42 The formation of nanoparticle clusters also affects the anisotropy constant resulting from the increase in dipole-dipole interactions.…”