Cobalt-ferrite nanobowl arrays : curved magnetic nanostructures
Srivastava, A. K.
White, Timothy John
Ramanujan, R. V.
Date of Issue2007
School of Materials Science and Engineering
Novel magnetic cobalt ferrite nanostructures with curved surfaces (i.e., nanobowls and hollow nanospheres) in a periodic array have been fabricated by in situ reduction of a cobalt and iron salt solution mixture in the interstitial spaces of three-dimensional, close-packed, polystyrene sphere templates. The effect of the shape created by this nanostructure and magnetocrystalline anisotropy introduced by suitable annealing were used to tailor the coercivity to values relevant to high-density data-storage applications.
Journal of materials research
© 2007 Material Research Society. This paper was published in Journal of Materials Research and is made available as an electronic reprint (preprint) with permission of Material Research Society. The paper can be found at the following DOI: [http://dx.doi.org/10.1557/JMR.2007.0149]. 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.