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Fabrication and magnetic behaviour of 2D ordered Fe/SiO 2 nanodots array

Author

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  • W. Liu
  • W. Zhong
  • L. J. Qiu
  • L. Y. Lü
  • Y. W. Du

Abstract

We have demonstrated a simple and universal morphology-controlled growth of 2D ordered Fe/SiO 2 magnetic nanodots array, which was based on 2D colloidal monolayer template composed of polystyrene (PS) spheres and one-step sol-gel spin-coating technique. The Fe/SiO 2 nanodots have a well-ordered structure arranged in a hexagonal pattern. The dots have the shape of quasi-pyramidal tetrahedron, which reside in the interstitial region between three PS spheres and the substrate. Magnetic measurements reveal that the nanodots array exhibits the in-plane easy magnetization direction. Compared with the unpatterned Fe/SiO 2 thin film, the dots array has lower saturated field, higher remanence and coercivity. The present method is applicable to 2D ordered nanodots array of other magnetic materials. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2006

Suggested Citation

  • W. Liu & W. Zhong & L. J. Qiu & L. Y. Lü & Y. W. Du, 2006. "Fabrication and magnetic behaviour of 2D ordered Fe/SiO 2 nanodots array," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 51(4), pages 501-506, June.
    • Handle: RePEc:spr:eurphb:v:51:y:2006:i:4:p:501-506
    DOI: 10.1140/epjb/e2006-00250-6
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