# Search results

Inżynieria Mineralna > 2021 > no. 2 > 199--206

Journal of Superconductivity and Novel Magnetism > 2016 > 29 > 3 > 581-585

Indian Journal of Physics > 2012 > 86 > 5 > 345-349

*d*-electrons in the mixed-valence phenomena has been investigated. Falicov-Kimball model extended by NNN hopping has been considered. Calculations have been made both at zero and at finite temperatures. It has been observed that NNN hopping (i) shifts the

*d*-level energy, (ii) makes the system more disordered, (iii) decreases degeneracy of the ground...

Open Physics > 2009 > 7 > 1 > 32-40

Open Physics > 2009 > 7 > 1 > 32-40

Central European Journal of Physics > 2009 > 7 > 1 > 32-40

Journal of Statistical Physics > 2009 > 135 > 2 > 375-387

Journal of Statistical Physics > 2006 > 123 > 3 > 585-600

Journal of Magnetism and Magnetic Materials > 2004 > 272-276 > Supplement > E691-E692

Czechoslovak Journal of Physics > 2004 > 54 > 4 > 423-426

*C*) and the specific-heat coefficient (

*γ*) as functions of temperature (

*τ*=

*k*

_{B}

*T*) and

*f*-level energy

*E*

_{f}. The special attention is devoted to the analysis of the...

Journal de mathematiques pures et appliquees > 2003 > 82 > 6 > 685-710

_{e}is chosen in the interval -U+4<μ

_{e}<0, such that, then, these states are neutral states and depend only on the sum of the two chemical potentials, μ=μ

_{i}+μ

_{e}. Consequences...

Physica A: Statistical Mechanics and its Applications > 2003 > 317 > 1-2 > 227-238

Physica A: Statistical Mechanics and its Applications > 1998 > 248 > 1-2 > 213-219

Physica A: Statistical Mechanics and its Applications > 1997 > 246 > 1-2 > 253-274

Physica B: Physics of Condensed Matter > 1997 > 230-232 > 493-496

_{f}), the specific heat (C), and the specific heat coefficient (γ), as functions of temperature (τ = k

_{B}T) and f-level energy (E

_{f}). A number of remarkable...

Physica A: Statistical Mechanics and its Applications > 1996 > 232 > 3-4 > 616-624