Magnetic properties of Co-Pt-C grain films
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Published:2004
Issue:8
Volume:53
Page:2761
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ISSN:1000-3290
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Container-title:Acta Physica Sinica
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language:
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Short-container-title:Acta Phys. Sin.
Author:
Zheng Wu ,Wang Ai-Ling ,Jiang Hong-Wei ,Zhou Yun-Song ,Li Tong ,
Abstract
Co-Pt-C grain films with in plan magnetic anisotropy and large coercivity Hc were prepared by sputtering on Si substrates in multilayer form,with post-annealing in vacuum at 700℃ for 1?h. After annealing, Co-Pt particles trans form from amorphous to fcc CoPt3 and fct CoPt, and C remains in disorder state. Effects of Pt and C concentration on the magnetic properties of the films are studied. The maximum Hc is 430kA/m when the content of Pt is 70 vol% and the thickness of C layer is 0.4nm. The shoulder developed on the hysteresis loop is analyzed.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy
Cited by
1 articles.
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