Kinks in the electronic specific heat of strongly correlated systems

).This result is also valid for correlated systems that main-tain a normal metallic behavior. In this case we can relyon Landau’s normal Fermi liquid (FL) theory[1], whichdescribes the low-energy excitations of correlated (inter-acting) electrons as “quasiparticles” (QP) which are adi-abatically connected to the non-interacting electrons. Asa result, only a QP renormalization factor Z