X-Ray Magnetic Circular Dichroism Studies on CeNi4B

نویسندگان

  • T. Toliński
  • J. C. Cezar
  • H. Wende
  • A. Kowalczyk
چکیده

The CeNi4B compound is a mixed-valence system. It is a paramagnet with μeff = 0.52 μB/f.u. and the paramagnetic Curie temperature θ = −10.7 K. In the present research we complete our previous magnetic susceptibility and X-ray photoemission measurements with new studies by the X-ray magnetic circular dichroism method. The observation of the Ce M4,5 edges carried out with X-ray magnetic circular dichroism confirms the mixed-valence state deduced previously from X-ray photoemission spectroscopy. Moreover, we report on the measurements of the Ni L2,3 edges, which enable verification of the Ni contribution to the magnetism of this compound.

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تاریخ انتشار 2009