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Hydrogenation and Magnetic Properties of Pd/Co Multilayers

Published online by Cambridge University Press:  10 February 2011

A. Suzuki ,
K. Kyuno ,
E. Akiba ,
T. Manago ,
H. Miyajima  and
R. Yamamoto
A. Suzuki
Affiliation:
Institute of Industrial Science, Univ. of Tokyo, Roppongi 7–22–1 Minato-ku Tokyo 106, Japan
K. Kyuno
Affiliation:
Univ. of Illinois at Urbana-Champaign, Urbana, IL 61801
E. Akiba
Affiliation:
National Institute of Materials and Chemical Research, Tsukuba, Ibaraki 305 Japan
T. Manago
Affiliation:
Keio University, Yokohama, Kanagawa 223 Japan
H. Miyajima
Affiliation:
National Institute of Materials and Chemical Research, Tsukuba, Ibaraki 305 Japan
R. Yamamoto
Affiliation:
Institute of Industrial Science, Univ. of Tokyo, Roppongi 7–22–1 Minato-ku Tokyo 106, Japan
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Abstract

The magnetic properties of sputtered Pd/Co multilaysers in hydrogen atmospheres were studied. The x-ray diffraction(XRD) patterns in hydrogen atmospheres showed that the lattice expansion of hydrogenated Pd decreased with decreasing thickness of Pd layers, which is reminiscent of nano-crystalline Pd. Perpendicular magnetic anisotropy(PMA) and saturation magnetization were reduced by the hydrogénation. The interface anisotropy energy per unit area, Ks, and volume anisotropy energy per unit volume, Kv are discussed. These results suggest that interface magnetic anisotropy between Pd and Co layers is suppressed by hydrogenation.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 458: Symposium W – Interfacial Engineering for Optimized Properties , 1996 , 391
Copyright
Copyright © Materials Research Society 1997

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References

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