NMR and magnetic susceptibility of CeCu6 |
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Authors: | I. Pop M. Coldea V. Niculescu |
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Affiliation: | 1. Faculty of Physics, University of CIuj, Romania
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Abstract: | NMR and magnetic susceptibility of CeCu6 intermetallic compound were investigated. The most important contributions to the magnetic susceptibility are the Curie-Weiss term, expressing the paramagnetism of the localized f-electrons, and a temperature independent term for which all the contributions were estimated. The phenomenological exchange constantJ sf between 4f — electron spins and conduction — electron spins is derived to be ?0·012 eV. The Knight shift and Curie temperature are discussed in terms of the Ruderman-Kittel-Kasuya-Yosida theory and in the Rocher's virtual bound states model. The s — f exchange integralΓ and the Fermi wavevectork F are derived to be — 0·8 eV and 1·32 Å?1, respectively. |
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