Electrical and magnetic properties of (U1-xRx)Ru2Si2alloys

Abstract
Comprehensive studies have been made of the effects of substitutions at the U site in URu2Si2 of all the rare-earth metals, except Pm, Eu and Yb, and of Th. Attention has been focused on the changes in the magnetic character produced by La and Ce, on the different effects on the 17.5 K resistivity anomaly and on the appearance in some of the dilute alloys of a low-temperature resistivity minimum. The non-linear susceptibility of La-doped alloys has been studied. The possible roles of short-range magnetic order and crystal field splitting are discussed in connection with the maxima in the resistivity and susceptibility of URu2Si2.