Paper Title:
Structure and Magnetic Properties of CoFe2O4 Nanocrystal Thin Films Prepared by Sol-Gel Method
  Abstract

Thin films of CoFe2O4 spinel ferrite were prepared on silicon (100) substrates at low temperature by means of a modified polyvinyl alcohol processing, and the structure and magnetic properties as a function of the only one varied calcination temperature were investigated in detail and optimized. The CoFe2O4 ferrite films had a single phase spinel structure and were well-crystallized at temperature above 600 °C, which is much lower than the required temperature in the traditional ceramic method (about 1000 °C). The films annealed at and above 500 °C for 1h showed the grain sizes between 9 and 40 nm, and exhibited high coercivities and high saturation magnetization. Co-ferrite films prepared by sol-gel method and annealed at 700 °C had excellent potential for important technological applications, such as information storage and magnetooptical devices.

  Info
Periodical
Edited by
Chengming Li, Chengbao Jiang, Zhiyong Zhong and Yichun Zhou
Pages
756-758
DOI
10.4028/www.scientific.net/MSF.687.756
Citation
J. R. Sun, Z. G. Wang, Y. Y. Wang, F. S. Li, "Structure and Magnetic Properties of CoFe2O4 Nanocrystal Thin Films Prepared by Sol-Gel Method", Materials Science Forum, Vol. 687, pp. 756-758, 2011
Online since
June 2011
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$32.00
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