Anomalous hall effect in some uranium intermetallic compounds

Abstract We report Hall effect measurements on the uranium intermetallic compounds UAl 2 , U 0.97 La 0.03 Al 2 , U 0.93 La 0.07 Al 2 , U 0.85 La 0.15 Al 2 , UPt 3 and UPd 3 . We find in all of these substances, a large positive Hall effect at high temperatures and maxima or minima at low temperatures. We have compared our data with the results of magnetic skew scattering theories and found qualitative agreement at high temperatures in the cases of U 1- x La x Al 2 and UPt 3 , but not in the case of UPd 3 .