Abstract
We discuss here transport coefficients which are due to degenerate Anderson impurities with a finite onsite Coulomb interaction U. Using our recently calculated expression for the Abrikosov-Suhl resonance where the Kondo singlet energy shift T0(U) enters explicitly we show that the resistivity ratio ρ(T)/ρ(T=0) and the thermopower S scale with the reduced temperature T/T0(U) as expected. By comparison with the full numerical NCA results for infinite U we estimate that the above calculations are quantitatively reliable up to T/T0(U)≃0.2. For this range simple analytical expressions are given as function of the reduced temperature.
Original language | English |
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Pages (from-to) | 441-446 |
Number of pages | 6 |
Journal | European Physical Journal B |
Volume | 90 |
Issue number | 4 |
DOIs | |
State | Published - Dec 1993 |