Dependence of microstructure and magnetic properties of FePt films on Cr90Ru10 underlayers

Y. F. Ding; J. S. Chen; E. Liu; J. P. Wang

doi:10.1016/j.jmmm.2004.08.023

Dependence of microstructure and magnetic properties of FePt films on Cr₉₀Ru₁₀ underlayers

Y. F. Ding, J. S. Chen, E. Liu, J. P. Wang

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

The effect of the thickness of Cr₉₀Ru₁₀ underlayers on the microstructure and magnetic properties of FePt films has been studied. Experimental results showed that the FePt films grown on the Cr ₉₀Ru₁₀ underlayers exhibited a (001) preferred orientation with out-of-plane magnetic anisotropy. The degree of the FePt(001) preferred orientation was closely related to that of the Cr(002) preferred orientation. The degree of ordering of the FePt films increased with the thickness of the Cr₉₀Ru₁₀ underlayers. The angular dependence of the coercivity curves suggested that an incoherent curling rotational mode be a dominant magnetic reversal mechanism in the FePt films at various Cr₉₀Ru₁₀ underlayer thicknesses.

Original language	English (US)
Pages (from-to)	443-449
Number of pages	7
Journal	Journal of Magnetism and Magnetic Materials
Volume	285
Issue number	3
DOIs	https://doi.org/10.1016/j.jmmm.2004.08.023
State	Published - Jan 2005

Bibliographical note

Funding Information:
One of the authors, Y.F. Ding, would like to express his gratitude to Nanyang Technological University (Singapore) for providing him the scholarship for this research.

Keywords

CrRu underlayer
FePt film
Preferred orientation
Sputtering

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abstract = "The effect of the thickness of Cr90Ru10 underlayers on the microstructure and magnetic properties of FePt films has been studied. Experimental results showed that the FePt films grown on the Cr 90Ru10 underlayers exhibited a (001) preferred orientation with out-of-plane magnetic anisotropy. The degree of the FePt(001) preferred orientation was closely related to that of the Cr(002) preferred orientation. The degree of ordering of the FePt films increased with the thickness of the Cr90Ru10 underlayers. The angular dependence of the coercivity curves suggested that an incoherent curling rotational mode be a dominant magnetic reversal mechanism in the FePt films at various Cr90Ru10 underlayer thicknesses.",

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AU - Liu, E.

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