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X-RAY Magneto-Optics in Lanthanide Materials

Published online by Cambridge University Press:  21 March 2011

K. Starke,
F. Heigl,
A. Vollmer and
G. Kaindl
K. Starke
Affiliation:
Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
F. Heigl
Affiliation:
Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
A. Vollmer
Affiliation:
Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
G. Kaindl
Affiliation:
Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
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Abstract

We demonstrate the feasibility of element-specific magnetization reversal studies applying x-ray magneto-optical Kerr effect (XMOKE) to lanthanide systems. In particular, we will first describe XMOKE spectra at 4d-4f excitation thresholds of Gd and Tb in some detail, before showing element specificity at the example of a Gd/Y/Tb-trilayer metal film. On the basis of experimental Tb M4,5 absorption spectra, we may anticipate substantial MO signals in specular reectivity at M4;5 edges of all lanthanide elements, provided they carry a non-vanishing net 4f-magnetization.

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