High-coercivity FePt nanoparticle assemblies embedded in oxide-matrix by atomic layer deposition
Date of Issue2013
School of Materials Science and Engineering
Self-assembled face-centered cubic FePt nanoparticles were embedded into the oxide capping layer using the atomic layer deposition technology. The effect of the oxide-matrix layer on the structure, mono-dispersibility, and magnetic properties of the FePt/oxide composite thin films was investigated. Experimental results suggest that the protection of the oxide-matrix capping layer can effectively inhibit the grain growth and particle aggregation, and preserve the ordered domains of the FePt nanoparticles during the L10 ordering transition through annealing. The combination of the atomic layer deposition capping layer and self-assembled FePt nanoparticles provides a new potential approach to fabricate the ultrahigh-density magnetic recording media.
Acta physica polonica A
© 2013 Institute of Physics, Polish Academy of Sciences. This paper was published in Acta Physica Polonica A and is made available as an electronic reprint (preprint) with permission of Institute of Physics, Polish Academy of Sciences. The paper can be found at the following official DOI: [http://dx.doi.org/10.12693/APhysPolA.123.173]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.