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The D-Band Exchange Splitting for Thin Gadolinium Overlayers

Published online by Cambridge University Press:  03 September 2012

O. Lagraffe,
P. A. Dowben and
M. Onellion
O. Lagraffe
Affiliation:
Department of Physics, Syracuse University, Syracuse, New York 13244-1130
P. A. Dowben
Affiliation:
Department of Physics, Syracuse University, Syracuse, New York 13244-1130
M. Onellion
Affiliation:
Department of Physics, University of Wisconsin, Madison, Wisconsin 53706
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Abstract

Thin (0–6 monolayer) films of gadolinium on Cu(100) have been investigated using synchrotron radiation photoemission. From the definite selection of final state symmetries in photoemission, we have been able to determine a lower bound to the exchange splitting of the gadolinium 5d band. The gadolinium films on Cu(100) exhibit an exchange splitting that changes from approximately 1.1 eV to 0.6 eV as the overlayer thickness increases. The results for thicker films agree with the accepted values for the 5d exchange splitting of bulk gadolinium.

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References

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