Non-Fermi liquid behavior of strongly correlated Fermi-systems and quasiparticles effective mass

Basing on the density functional theory of fermion condensation, we analyze the non-Fermi liquid behavior of strongly correlated Fermi-systems such as heavy-fermion metals. When deriving equations for the effective mass of qua-siparticles, we consider solids with a lattice and homogeneous systems. We show that the low-temperature thermodynamic and transport properties are formed by quasiparticles, while the dependence of the effective mass on temperature, number density, magnetic fields, etc gives rise to the non-Fermi liquid behavior. Our numerical calculations make it possible to visualize the properties of ob-servable characteristics of the strong correlated Fermi systems. Our theoretical study of the heat capacity, magnetization, energy scales, the longitudinal magnetoresistance and magnetic entropy are in good agreement with the remar-kable recent facts collected on the heavy-fermion metal YbRh2 Si2.