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Photoelectron Diffraction of Magnetic Ultrathin Films: Fe/Cu(001)

Published online by Cambridge University Press:  21 February 2011

J. G. Tobin ,
M. K. Wagner ,
X.-O. Guo  and
S. Y. Tong.
J. G. Tobin
Affiliation:
Lawrence Livermore National Laboratory, Livermore, California 94550
M. K. Wagner
Affiliation:
Dept. of Chemistry, University of Wisconsin, Madison, WI 53706
X.-O. Guo
Affiliation:
Dept. of Physics, University of Wisconsin, Milwaukee, WI 53211
S. Y. Tong.
Affiliation:
Dept. of Physics, University of Wisconsin, Milwaukee, WI 53211
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Abstract

The preliminary results of an ongoing investigation of Fe/Cu(001) are presented here. Energy dependent photoelectron diffraction, including the spin-dependent variant using the multiplet split Fe 3s state, is being used to investigate the nanoscale structures formed by near-monolayer deposits of Fe onto Cu(001). Core-level photoemission from the Fe3p and Fe3s states has been generated using synchrotron radiation as the tunable excitation source. Tentatively, a comparison of the experimental Fe3p cross section measurements with multiple scattering calculations indicates that the Fe is in a fourfold hollow site with a spacing of 3.6Å between it and the atom directly beneath it, in the third layer. This is consistent with an FCC structure. The possibility of utilizing spin-dleendent photoelectron diffraction to investigate magnetic ultrathin films will be demonstrated, using our preliminary spectra of the multiplet-split Fe3s of near-monolayer Fe/Cu(001).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 208: Symposium J – Advances in Surface and Thin Film Diffraction , 1990 , 283
Copyright
Copyright © Materials Research Society 1991

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References

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