  Studies connected with the investigations of non-Fermi liquid (NFL) systems
continue to attract interest in condensed matter physics community.
Understanding the anomalous physical properties exhibited by such systems and
its related electronic structures is one of the central research topics in this
area. In this context, Ce-based and Ce-site diluted (with non-magnetic ions)
compounds provide a fertile playground. Here, we present a detailed study of
non-linear DC susceptibility and combined density functional theory plus
dynamical mean field theory (DFT+DMFT) on Ce0.24La0.76Ge. Theoretical
investigation of 4f partial density of states, local susceptibility and
self-energy demonstrates the presence of NFL behavior which is associated with
fluctuating local moments. Non-linear DC susceptibility studies on this
compound reveal that the transition from NFL state to the new phase is due to
development of the bi-quadratic exchange coupling and it obeys the non-linear
susceptibility scaling. Under the application of magnetic fields, local moments
interact spatially through conduction electrons resulting in magnetic
fluctuations. Our studies point to the fact that the origin of the observed
bi-quadratic exchange coupling is due to the spatial magnetic fluctuations.
