Structural, magnetic and transport properties of the compounds (T = Ru, Rh, Ir, Pd and Pt)

New ternary uranium intermetallics with the general formula (T = Ru, Rh, Pd, Ir and Pt) have been prepared and found to crystallize in the orthorhombic -type structure. We report the results of magnetic susceptibility and electrical resistivity measurements for these compounds. It is found that and are ferromagnetic compounds with Curie temperatures of 73, 60 and 72 K, respectively. The compound is an antiferromagnet with a Néel temperature of 33 K, while probably undergoes two consecutive magnetic phase transitions at 80 and at 30 K to ferromagnetic and antiferromagnetic states. In all of the compounds investigated, the temperature dependence of the electrical resistivity shows features that could be ascribed to Kondo systems. The results are discussed and compared with those for the UTGa counterparts.