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Magnetic and Magneto-Optic Properties of PtFe (001) and PtCo (001) Thin Films

Published online by Cambridge University Press:  03 September 2012

Bruce M. Lairson ,
Mark R. Visokay ,
Robert Sinclair  and
Bruce M. Clemens
Bruce M. Lairson
Affiliation:
Department of Materials Science and Engineering Stanford University, Stanford, CA 94305–2205
Mark R. Visokay
Affiliation:
Department of Materials Science and Engineering Stanford University, Stanford, CA 94305–2205
Robert Sinclair
Affiliation:
Department of Materials Science and Engineering Stanford University, Stanford, CA 94305–2205
Bruce M. Clemens
Affiliation:
Department of Materials Science and Engineering Stanford University, Stanford, CA 94305–2205
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Abstract

We report on the magnetic and Magneto-optical properties of PtFe and PtCo intermetallic thin films when they have the CuAu(I) tetragonal structure and their crystallographic C axis is oriented out of the film plane. These films possess large perpendicular magnetic anisotropy energies. We observe changes in the Magneto-optic Kerr rotations of Pt-Fe and Pt-Co alloys associated with the formation of the uniaxial CuAu(I) crystal structure. In particular, we report the observation of up to 60% enhancement in the Magneto-optic Ken-rotation for ordered, epitaxial PtFe intermetallic alloy over that of the random face centered cubic alloy. This enhancement is wavelength dependent, with a peak in the visible light range at 2.0 eV.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 313: Symposium Q1 – Magnetic Ultrathin Films, Multilayers and Surfaces/Magnetic Interfaces-Physics and Characterizations , 1993 , 805
Copyright
Copyright © Materials Research Society 1993

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References

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