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Growth and Characterization of Fept Compound thin Films

Published online by Cambridge University Press:  15 February 2011

M.R. Visokay
Affiliation:
Department of Materials Science and Engineering, Stanford University, Stanford CA 94305
R. Sinclair
Affiliation:
Department of Materials Science and Engineering, Stanford University, Stanford CA 94305
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Abstract

FePt alloy films were deposited at 50 and 49°C onto amorphous SiO2 and single crystal [001] MgO and [0001] Al2O3 using DC magnetron cosputtering, resulting in polycrystalline and [001] and [111] epitaxial films, respectively. High temperature deposition resulted in ordered films with the tetragonal Ll structure and out-of-plane magnetic easy axes while low temperature deposition yielded chemically disordered fcc alloys with in-plane easy axes. Significant modification of the magneto-optic Kerr spectrum is observed for ordered relative to disordered alloys for all orientations. The Kerr rotation has a strong orientation dependence for the ordered, but not disordered films.

Type
Research Article
Copyright
Copyright © Materials Research Society 1995

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