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Proceedings Paper

The structure and magnetic properties of FePt based perpendicular exchange coupled composite films
Author(s): H. H. Guo; J. L. Liao; B. Ma; Z. Z. Zhang; Q. Y. Jin
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Paper Abstract

Two series of FePt/[Co/Pt]N (FPCP-N) and FePt/[Co/Ni]N (FPCN-N) exchange coupled composite (ECC) films were prepared and studied. Well isolated island-like grains with an average grain size of about 20nm are obtained. Both FePt hard layer and Co based soft multilayer are of perpendicular anisotropy. Large reduction of the switching field is observed when the Co based multilayer is deposited on the top of FePt films. When the thickness of Co based multilayers increase, thermal stability of the composites decreases slightly in both two series. Therefore, low switching field and high thermal stability are both obtained in these perpendicular ECC films.

Paper Details

Date Published: 24 January 2013
PDF: 6 pages
Proc. SPIE 8782, 2012 International Workshop on Information Storage and Ninth International Symposium on Optical Storage, 87820P (24 January 2013); doi: 10.1117/12.2015011
Show Author Affiliations
H. H. Guo, Fudan Univ. (China)
J. L. Liao, Fudan Univ. (China)
B. Ma, Fudan Univ. (China)
Z. Z. Zhang, Fudan Univ. (China)
Q. Y. Jin, Fudan Univ. (China)
East China Normal Univ. (China)


Published in SPIE Proceedings Vol. 8782:
2012 International Workshop on Information Storage and Ninth International Symposium on Optical Storage
Fuxi Gan; Zhitang Song, Editor(s)

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