Abstract
As the size of a magnetic particle is reduced down to the nanoscale there is a convergence of the physical length scales with those that mediate the properties of the material. This chapter introduces the physics of magnetic nanoparticles with attention paid to size effects, including anisotropy and superparamagnetism. We then review the research involved with the formation and study of magnetic nanoparticles in a nonmagnetic matrix resulting from the post synthesis annealing of multilayer precursor systems. The effects of phase formation in the case of the FePt/C system and the more general effects of inter-particle spacing on the magnetic properties will be discussed. In the third section the work involving epitaxial growth of FePt nanoparticle islands on single crystal MgO substrates is discussed.
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Bonder, M.J., Huang, Y., Hadjipanayis, G.C. (2006). Magnetic Nanoparticles. In: Sellmyer, D., Skomski, R. (eds) Advanced Magnetic Nanostructures. Springer, Boston, MA. https://doi.org/10.1007/0-387-23316-4_7
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DOI: https://doi.org/10.1007/0-387-23316-4_7
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