Universality in heavy fermion systems with general degeneracy
We discuss the relation between the T 2 coefficient of electrical resistivity A and the T-linear
specific-heat coefficient γ for heavy-fermion systems with general N, where N is the
degeneracy of quasi<? format?> particles. A set of experimental data reveals that the
Kadowaki-Woods relation, A/γ 2= 1× 10-5 μ Ω cm (K mol/m J) 2, collapses remarkably for
large-N systems, although this relation has been regarded to be commonly applicable to the
Fermi liquids. Instead, based on the Fermi-liquid theory we propose a new relation, A˜/γ˜ 2 …
specific-heat coefficient γ for heavy-fermion systems with general N, where N is the
degeneracy of quasi<? format?> particles. A set of experimental data reveals that the
Kadowaki-Woods relation, A/γ 2= 1× 10-5 μ Ω cm (K mol/m J) 2, collapses remarkably for
large-N systems, although this relation has been regarded to be commonly applicable to the
Fermi liquids. Instead, based on the Fermi-liquid theory we propose a new relation, A˜/γ˜ 2 …
We discuss the relation between the coefficient of electrical resistivity and the -linear specific-heat coefficient for heavy-fermion systems with general , where is the degeneracy of quasi<?format ?>particles. A set of experimental data reveals that the Kadowaki-Woods relation, , collapses remarkably for large- systems, although this relation has been regarded to be commonly applicable to the Fermi liquids. Instead, based on the Fermi-liquid theory we propose a new relation, A˜/γ˜2=1×10-5 with A˜=A/12N(N-1) and γ˜=γ/12N(N-1). This new relation exhibits an excellent agreement with the data for the whole range of degenerate heavy fermions.
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