  Temperature dependence of the tunnel magnetoresistance (TMR) was calculated
in range of the quantum-ballistic model in the magnetic tunnel junctions (MTJs)
with embedded nanoparticles (NPs). The electron tunnel transport through NP was
simulated in range of double barrier approach, which was integrated into the
model of the magnetic point-like contact. The resonant TMR conditions and
temperature impact were explored in detail. Moreover, the possible reasons of
the temperature induced resonant conditions were discussed in the range of the
lead-tunneling cell-lead model near Kondo temperature. We also found that
redistribution of the voltage drop becomes crucial in this model. Furthermore,
the direct tunneling plays the dominant role and cannot be omitted in the
quantum systems with the total tunneling thickness up to 5-6 nm. Hence, Coulomb
blockade model cannot explain Kondo-induced TMR anomalies in nanometer-sized
tunnel junctions.
