Crystal field study in rare-earth-doped LuInNi4

Abstract

Magnetic susceptibility and electron spin resonance experiments in the rare earth (R = Nd, Er, and Yb) 5-25% doped cubic intermetallic LuInNi4 enable estimates of the fourth A(4) and sixth A(6) order crystal-field parameters for this compound. These parameters yield a Gamma (6) doublet, a Gamma (7) doubler, and a Gamma (8) quartet as the ground states for Nd3+, Er3+, and Yb3+, respectively, and an overall crystal-field splitting of 100-300 K. The A(4) and A(6) parameters are found to have comparable order of magnitude for all the R studied and their values are in agreement with reported values for other cubic systems.631