Crystal field studies on the heavy fermion compound CeNi${}_8$CuGe${}_4$

L Peyker, C Gold, E-W Scheidt +5

Substitution of nickel by copper in the heavy fermion system CeNi${}_{9-x}$Cu${}_x$Ge${}_4$ alters the local crystal field environment of the Ce${}^{3+}$-ions. This leads to a quantum phas…