Crossover from Magnetic to NonmagneticGround State in the Kondo Alloy System Ce(Ni_1-<i>x</i>Pd_<i>x</i>)Sn

Abstract

Experimental results of magnetization and neutron diffraction measurements on single-crystal CePdSn revealed that the 4f electrons in CePdSn are in a localized Ce 3+ state, and the magnetic structure below T N =7 K is incommensurate with the propagation vector of q =(0, 0.473, 0). Nickel substitution for Pd strengthens the Kondo effect, resulting in the decrease of T N and the nonmagnetic ground state of 4f electrons in CeNiSn.