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Journal of Nanomaterials
Volume 2012 (2012), Article ID 174735, 5 pages
http://dx.doi.org/10.1155/2012/174735
Research Article

Magnetic Properties of Co-Fe-B Amorphous Films Thermomagnetically Treated with Different Field Directions

School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

Received 10 September 2012; Accepted 20 September 2012

Academic Editor: Weichang Hao

Copyright © 2012 Zhe Liu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Co-Fe-B films were prepared by electroless plating. As-deposited films were thermomagnetically treated in the applied magnetic field of 500 Oe with different field directions at 300°C for 1 hour. The effects of magnetic field direction of thermomagnetic treatment on the structure and magnetic properties of Co-Fe-B thin films were investigated. It is found that two phases existed in annealed Co-Fe-B films: one is weak crystallized CoFe phase, the other being amorphous phase. The surface morphologies of the treated films are found to be affected by the direction of thermomagnetic treatment field. The results also show that the magnetic properties of thermomagnetically treated films are influenced greatly by the treatment field direction.