Magnetism in U2T2X compounds

Abstract Magnetic and other electronic properties are presented for the U 2 T 2 X compounds (T = late transition metal, X = Sn or In), that crystallize in the tetragonal U 3 Si 2 -type structure. They show the formation of 5f magnetic moments and antiferromagnetic ordering in compounds where weak 5f-d hybridization is expected. Near the onset of magnetic ordering strongly enhanced γ-values are found. Neutron-diffraction experiments on U 2 Pd 2 Sn and U 2 Pd 2 In point to a connection between the mutual coordination of U atoms and the type of magnetic anisotropy.