Superconductivity and magnetism in the Heusler alloys MPd2Pb (M=rare earth, Th, and U).

We report on an investigation of superconductivity and magnetism in the series of compounds {ital M}Pd{sub 2}Pb ({ital M}=rare earth, Th, U) through measurements of electrical resistivity, magnetic susceptibility, specific heat, and lattice parameters. Both single crystals and polycrystalline samples were studied. The compound UPd{sub 2}Pb was examined for possible heavy-fermion behavior, and found to exhibit antiferromagnetic order below {ital T}=35 K. {copyright} {ital 1996 The American Physical Society.}