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Measurement of Local Susceptibility at 140Ce in CePd3

  • M. N. Nyayate
  • S. H. Devare
  • H. G. Devare

Abstract

Mixed valence of cerium in CePd3 has been investigated by variety of techniques. The bulk susceptibility measurement reveals a broad maximum around 150 K /1/; the X(T) is highly reduced compared to that of trivalent Ce at lower temperatures. The L111 edge X-ray absorption spectra assigned the valence for Ce as 3.2 in this compound /2/. Diffuse neutron scattering showed nearly temperature independent large linewidth which was interpreted as spontaneous relaxation of local 4f magnetization due to interconfiguration fluctuation between 4f1 and 4f°/3/. The linewidth of the 4f1 level was calculated to be around 220 K with the excitation energy around 40 meV which is far too small compared to that obtained from Raman spectra (Ex ≅ 300 meV) /4/.

Keywords

Local Susceptibility Neutron Scattering Experiment Single Phase Formation Valence Fluctuation Diffuse Neutron 
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Copyright information

© Plenum Press, New York 1987

Authors and Affiliations

  • M. N. Nyayate
    • 1
  • S. H. Devare
    • 1
  • H. G. Devare
    • 1
  1. 1.Tata Institute of Fundamental ResearchBombayIndia

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