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The Perpendicular Magnetic Anisotropy and Structure of Sputtered Ag/Co, Pd/Co, and AgPd/Co Multilayered Films

Published online by Cambridge University Press:  26 February 2011

Akira Yamaguchi ,
We-Hyo Soe ,
Ryoichi Yamamoto  and
Masonobu Kobayashi
Akira Yamaguchi
Affiliation:
Research Center for Advanced Science and Technology, University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo 153, Japan
We-Hyo Soe
Affiliation:
Research Center for Advanced Science and Technology, University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo 153, Japan
Ryoichi Yamamoto
Affiliation:
Research Center for Advanced Science and Technology, University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo 153, Japan
Masonobu Kobayashi
Affiliation:
Research Laboratory, Oki Electric Industry Co., Ltd., 550-5 Higashiasakawa-cho, Hachioji, Tokyo 193, Japan
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Abstract

The structural and magnetic properties of sputtered Ag/Co, Pd/Co, and AgPd/Co multilayered films were investigated. When substrate temperature during deposition (Ts) was set at room temperature, the easy magnetization axis of the Pd/Co films with Co thickness less than 7Å was normal to the film plane and that of the Ag/Co films was parallel. AgPd/Co multilayered films showed a transition of the preferred direction of magnetic moment from lying in the film plane towards lying along the film normal when increasing the Pd concentration above 81 at%. Moreover, an anomalous reduction of the saturation magnetization was found. The perpendicular magnetic anisotropy of Pd/Co films with low Ts increased with decreasing the thickness of Co layer. However, the Pd/Co films with high Ts showed opposite tendency.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 231: Symposium S – Magnetic Surfaces, Thin Films and Multilayers , 1991 , 473
Copyright
Copyright © Materials Research Society 1992

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