Kondo lattice and heavy fermions in Heusler phases: CeInAg2?xCux |
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| Authors: | Lahiouel R Pierre J Siaud E Galera R M Besnus M J Kappler J P Murani A P |
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| Institution: | (1) Laboratoire L. Néel, C.N.R.S., 166 X, F-38042 Grenoble, France;(2) L.M.S.E.S., Université L. Pasteur, F-67084 Strasbourg Cedex, France;(3) Institut Laue-Langevin, 156 X-Centre de Tri, F-38042 Grenoble Cedex, France |
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| Abstract: | Magnetic properties, electrical resistivity, specific heat and magnetic excitations have been investigated in Heusler phases CeInAg2–xCux. The hybridization continuously increases from CeInAg2 (antiferromagnetic Kondo lattice) to CeInCu2 (heavy fermion compound). The specific heat coefficient for this last compound is found to reach 1.2 J/mole. K2 at 1.4 K, the Kondo temperature is 6 K and the Wilson ratio is close to 2. |
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