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Nanoindentation and Magneto-Optical Study of Oxidized Co Thin Films

Published online by Cambridge University Press:  21 March 2011

S. R. Mishra ,
J. Rho ,
G. Sherfy ,
M. Roy  and
T. Buckner
S. R. Mishra
Affiliation:
Department of Physics, The University of Memphis, Memphis, TN 38152
J. Rho
Affiliation:
Department of Biomedical Engineering, The University of Memphis, TN, 38152
G. Sherfy
Affiliation:
Department of Physics, The University of Memphis, Memphis, TN 38152
M. Roy
Affiliation:
Department of Biomedical Engineering, The University of Memphis, TN, 38152
T. Buckner
Affiliation:
Department of Physics, The University of Memphis, Memphis, TN 38152
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Abstract

We have studied the mechanical and magneto-optical properties of postdeposition oxidized Co thin films. Oxidization process leads to the formation of double-layered structure of cobalt oxide on top of metallic cobalt. The nanoindentation measurements show decrease in hardness and Young's modulus at low annealing temperature and are related to increasing porosity of the film. The magneto-optical Kerr effect (MOKE) reveals dependence of the MOKE spectra on annealing temperature. The increased coercivity of the annealed films has been observed by MOKE and is related to the structure of the film.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 695: Symposium L – Thin Films: Stresses and Mechanical Properties IX , 2001 , L3.28.1
Copyright
Copyright © Materials Research Society 2002

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References

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