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X-ray resonant magnetic scattering has been used to examine the magnetic interactions coupling the rare earth and iron sublattices in the antiferromagnetic compound DyFe(4)Al(8). Dramatic differences are observed in the temperature dependencies of the magnetic intensities depending on whether the photon energy is tuned to the DyL(2) or DyL(3) absorption edge. Simulations suggest that these variations in intensity are a result of small changes in the orbital occupation and spin polarization within the 5d conduction band.

Additional information

Authors: LANGRIDGE S ET AL, European Synchrotron Radiation Facility, Grenoble (FR);PAIXÃO J A, University of Coimbra, Departamento de Fisica (PT);LANDER G H, JRC Karlsruhe (DE);GIBBS D, Brookhaven National Laboratory, Physics Department, Long Island (US);SØRENSEN S A, Risø National Laboratory, Solid State Physics Department, Roskilde (DK);TALIK E, University of Silesia, Institute of Physics, Katowice (PL);S?RENSEN S A, Ris? National Laboratory, Solid State Physics Department, Roskilde (DK)
Bibliographic Reference: Article: Physical Review Letters (1998)
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