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Phys Rev Lett. 2001 Apr 09;86(15):3415-8. doi: 10.1103/PhysRevLett.86.3415.

X-ray magneto-optics in lanthanides.

Physical review letters

K Starke, F Heigl, A Vollmer, M Weiss, G Reichardt, G Kaindl

Affiliations

  1. Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany.

PMID: 11327984 DOI: 10.1103/PhysRevLett.86.3415

Abstract

Magneto-optical methods in the visible light regime generally lack element specificity, which has become a considerable shortcoming in research on advanced heteromagnetic systems. Using circularly polarized soft x rays tuned to a 4d-4f core-level transition of a lanthanide element, the specularly reflected x-ray intensity changes proportionally to the magnetization of this element and, e.g., hystereses are easily measured element specifically. In contrast to the case of visible light, temperature dependent 4d-4f magneto-optical signals are not influenced by the thermal lattice expansion.

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