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Growth, Structure and Characterization of Electrodeposited Co/Cu Ultrathin Films and Multilayers

Published online by Cambridge University Press:  10 February 2011

Y. Jyoko ,
S. Kashiwabara  and
Y. Hayashi
Y. Jyoko
Affiliation:
Department of Materials Science & Engineering, Faculty of Engineering, Kyushu University, Fukuoka 812, Japan
S. Kashiwabara
Affiliation:
Department of Materials Science & Engineering, Faculty of Engineering, Kyushu University, Fukuoka 812, Japan
Y. Hayashi
Affiliation:
Department of Materials Science & Engineering, Faculty of Engineering, Kyushu University, Fukuoka 812, Japan
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Abstract

Preparation of giant magnctorcsistancc Co/Cu multilayers by electrodeposition has been discussed on the basis of a nucleation- growth mechanism and experimental observations. Reflection electron microscopy (REM- RHEED) studies of clectrodcpositcd Co, Cu/Pt(111) ultrathin layers and bilayers have revealed a simultaneous multinuclcar multilayer growth (pseudo layer- by- layer growth). REM- RHEED observations have also suggested the formation of an additional (2×2) superstructure on an epitaxially grown Cu/Co/Pt(111) bilayer surface. “Giant” magnctorcsistancc and oscillatory antifcrramagnetic intcrlaycr coupling have been observed in a (111) textured Co/Cu multilayered nanostructurc, prepared by electrodeposition under potential control in the presence of a very slight amount of CrO3. Such a multilayered structure containing a nominal nonmagnetic Cu spacer layer thickness of 3.2 nm exhibits a large saturation magnctorcsistancc of more than 18% at room temperature.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 451: Symposium P – Electrochemical Synthesis and Modification , 1996 , 87
Copyright
Copyright © Materials Research Society 1997

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References

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