Microstructure and Magnetic Properties of the CoPtRu-SiO2 Single and CoPtRu-SiO2/Co72Pt28-SiO2 Double Layer Nanocomposite Films

Abstract:

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In this work, the CoPtRu nanocomposite films with were fabricated on the Ru seed layer. The effects of Ru content on the microstructure and magnetic properties of the CoPtRu-SiO2 single layer nanocomposite films, and magnetic properties of the CoPtRu-SiO2/Co72Pt28-SiO2 double layer nanocomposite films were studied. Results showed that with an increase of Ru content in the CoPtRu film, the ordering degree of hcp-CoPtRu decreased, the volume of soft magnetic fcc phase increased, both the anisotropy constant and the saturation magnetization of the CoPtRu film decreased greatly. As a result, the anisotropy field of the film did not decrease notably. Therefore, the coercivity of the CoPtRu-SiO2/Co72Pt28-SiO2 double layer film was very close to that of Co72Pt28-SiO2 single layer film at both room temperature and low temperature.

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Periodical:

Edited by:

Rongming Wang, Ying Wu and Xiaofeng Wu

Pages:

358-363

DOI:

10.4028/www.scientific.net/MSF.688.358

Citation:

R. J. Tang et al., "Microstructure and Magnetic Properties of the CoPtRu-SiO2 Single and CoPtRu-SiO2/Co72Pt28-SiO2 Double Layer Nanocomposite Films", Materials Science Forum, Vol. 688, pp. 358-363, 2011

Online since:

June 2011

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$35.00

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