Kadowaki-Woods Ratio of Strongly Coupled Fermi Liquids

Details Kadowaki-Woods Ratio of Strongly Coupled Fermi Liquids Kadowaki-Woods Ratio of Strongly Coupled Fermi Liquids

2007-04-06

arxiv.org/abs/0704.0843v2

Phys. Rev. B 76, 193109 (2007)

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

10.1103/PhysRevB.76.193109

On the basis of the Fermi liquid theory, the Kadowaki-Woods ratio $A/\gamma^2$ is evaluated by using a first principle band calculation for typical itinerant $d$ and $f$ electron systems. It is found as observed that the ratio for the $d$ electron systems is significantly smaller than the normal $f$ systems, even without considering their relatively weak correlation. The difference in the ratio value comes from different characters of the Fermi surfaces. By comparing Pd and USn$_3$ as typical cases, we discuss the importance of the Fermi surface dependence of the quasiparticle transport relaxation.

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