Loss of magnetism in CePd2-xNixAl3

E. BAUER; A. GALATANU; M. GÓMEZ BERISSO; P. PEDRAZZINI; J.G. SERENI

PHYSICA B - CONDENSED MATTER

Año: 2002 vol. 312 p. 464 - 465

0921-4526

Hexagonal CePd2−xNixAl3 exhibits a crossover from a Kondo lattice showing magnetic order at TN2.8 K for x0.2 to intermediate valence (IV) for x→2. Though TN(x) is weakly affected upon Pd/Ni substitution before vanishing at finite temperature, the Kondo temperature TK progressively increases. Above x0.3 the phase boundary no longer exists and strong spin fluctuations cause pronounced deviations from a Fermi-liquid ground state before the IV regime is established for x1.