Non-Fermi liquid behavior of the electrical resistivity at the ferromagnetic quantum critical point (original) (raw)

We propose a model for the non-Fermi behavior in the proximity of the quantum phase transition induced by the strong polarization of the electrons due to local magnetic moments. The selfconsistent Renormalization Group methods have been used to calculate the temperature dependence of the electrical resistivity and specific heat. The T 5/3 dependence of resistivity and the T ln T dependence of the specific heat show that the magnetic impurities drive a ferromagnetic quantum phase transition and near the critical point the system present a non-Fermi liquid behavior. The model is in good agreement with the experimental data obtained for NixPd1−x alloy.