Magnetic properties of Kondo-lattice system
2006; Elsevier BV; Volume: 378-380; Linguagem: Inglês
10.1016/j.physb.2006.01.293
ISSN1873-2135
AutoresH. Kitazawa, J. Prchal, Naohito Tsujii, Motoharu Imai, G. Kido,
Tópico(s)Nuclear Materials and Properties
ResumoWe have carried out measurements of specific heat and magnetic susceptibility of Ce1-xYxPdAl(0⩽x⩽0.4) polycrystalline samples to study the dilution effect on magnetic properties of Kondo-lattice system CePdAl. A substitution of nonmagnetic ions of Y for magnetic ions of Ce reduces the Néel temperature TN rapidly and enhances the paramagnetic Curie–Weiss temperature θp. These results suggest that the increase of x predominantly leads to an increase of the exchange parameter J arising out of the interaction between the Ce 4f electron and the conduction electrons.
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