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Second Order Magneto-Optic Effects in Epitaxial FE(110)/MO(110) Bilayers

Published online by Cambridge University Press:  15 February 2011

R.M. Osgood,
R.L. White and
B.M. Clemens
R.M. Osgood
Affiliation:
Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305
R.L. White
Affiliation:
Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305
B.M. Clemens
Affiliation:
Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305
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Abstract

The signal measured during a Magneto-Optic Kerr Effect (MOKE) experiment is usually assumed to be linear in the magnetization (or the magnitude of the magneto-optic coupling vector Q that is proportional to the magnetization) so that a plot of the magnetization versus applied field can be obtained. We have observed an appreciable contribution from the Q2 term in the magneto-optic response of epitaxial Fe(110)/Mo(110) bilayers. The Q2 term in the magneto-optic response is much larger than that predicted by existing theory. We re-derive and modify the existing theory to fit the Q2 term.

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References

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