Grand Kadowaki-Woods Relation of Heavy-Fermion Systems with General Degeneracy(Current Topics)

Abstract

Fermi-liquid theory has achieved great success in describing the electronic states of metals. One of the most fundamental relation in Fermi-liquid theory is the Kadowaki-Woods (KW) relation. Recent our studies have shown, however, that the relation is broken for heavy-fermion compounds with large degeneracy. Based on the Fermi-liquid theory, we have successfully derived a new relation; the grand-KW relation, which is universally applicable to whole the heavy-fermion systems with general degeneracy. The grand-KW relation shows an excellent agreement with experimental data, and hence will be indispensable in the research of Fermi-liquid systems.