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From ferromagnetic to non-magnetic singlet ground state in CePd1-x Ni x

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Zeitschrift für Physik B Condensed Matter

Abstract

Magnetic, resistivity and specific heat measurements were performed on the CePd1-x Ni x system, which ranges between a ferromagnetic (CePd) and non-magnetic (CeNi) singlet ground state. The Curie temperature (T c ) grows with Ni concentration, reaching a maximum value ofT c =(10.5±0.1) K for 0.5≤x≤0.8. Both, the concentration dependence ofT c and the Curie-Weiss temperature (θ P ) follow the predicted competition between the magnetic exchange interactions and the Kondo effect. In the crossover region (x≅0.9) the entropy gain shows that only the doublet crystal field ground state is involved in the singlet ground state formation.

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Partially supported by the “Direction de la Coopération Scientifique et Technique du Ministère des Relations Extérieures” of France

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Nieva, G.L., Sereni, J.G., Afyouni, M. et al. From ferromagnetic to non-magnetic singlet ground state in CePd1-x Ni x . Z. Physik B - Condensed Matter 70, 181–186 (1988). https://doi.org/10.1007/BF01318296

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  • DOI: https://doi.org/10.1007/BF01318296

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