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Surface Catalyzed Photo-Assisted Mocvd of Cobalt Thin Films for Enhanced Control of Magnetic Properties

Published online by Cambridge University Press:  10 February 2011

M.F. Chioncel ,
P.W. Haycock ,
F.Y. Ogrin ,
B.L. Ruthven  and
J.W. Bull
M.F. Chioncel
Affiliation:
Birchall Centre for Inorganic Chemistry and Materials Science, School of Chemistry and Physics, Lennard-Jones Laboratories, Keele University, Staffordshire, ST5 5BG, UK
P.W. Haycock
Affiliation:
Birchall Centre for Inorganic Chemistry and Materials Science, School of Chemistry and Physics, Lennard-Jones Laboratories, Keele University, Staffordshire, ST5 5BG, UK
F.Y. Ogrin
Affiliation:
Birchall Centre for Inorganic Chemistry and Materials Science, School of Chemistry and Physics, Lennard-Jones Laboratories, Keele University, Staffordshire, ST5 5BG, UK
B.L. Ruthven
Affiliation:
Birchall Centre for Inorganic Chemistry and Materials Science, School of Chemistry and Physics, Lennard-Jones Laboratories, Keele University, Staffordshire, ST5 5BG, UK
J.W. Bull
Affiliation:
Birchall Centre for Inorganic Chemistry and Materials Science, School of Chemistry and Physics, Lennard-Jones Laboratories, Keele University, Staffordshire, ST5 5BG, UK
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Abstract

Thin films of cobalt have been deposited by photo-assisted metal-organic chemical vapour deposition. Samples of thickness less than 60 nm, grown at 110 °C, exhibit inverse hysteresis when an external magnetic field is applied in a particular direction normal to the plane of the film. These films are a mixture of crystalline and, possibly, amorphous phases with a grain size of about 130 nm and a significant oxygen content throughout. The potential roles of the various physical characteristics, as well as that of the photolytic deposition process itself, in the origin of the inverse hysteresis are discussed, as is a possible self-limiting growth mechanism.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 616: Symposium I – New Methods, Mechanisms & Models of Vapor Deposition , 2000 , 3
Copyright
Copyright © Materials Research Society 2000

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