Numerical Renormalization Group computation of temperature dependent specific heat for a two-channel Anderson model

► The two-channel Anderson model exhibits FL and nFL regimes. ► NRG, with interleaving and the multi-step procedures, solve Hamiltonian. ► Large temperature in the specific heat curves, from Kondo to Schottky peak. ► Analysis of Ce1−xLaxNi9Ge4 compound. ► Schottky-like peak in this compound suggests J=9/2 multiplet at the impurity level.