Kadowaki–Woods ratio

The Kadowaki–Woods ratio is the ratio of A, the quadratic term of the resistivity and γ², the linear term of the specific heat. This ratio is found to be a constant for transition metals, and for heavy-fermion compounds, although at different values.

$R_{\mathrm {KW} }={\frac {A}{\gamma ^{2}}}$

In 2009, Anthony Jacko, John Fjaerestad, and Ben Powell showed that the different ratios could be understood on the basis of different materials specific properties, such as the density of states and the electron density, even before electron-electron interactions were taken into account.

See also

• Wilson ratio
• q-ratio

External links

• K. Kadowaki, S.B. Woods (1986). "Universal relationship of the resistivity and specific heat in heavy-fermion compounds". Solid State Communications. 58 (8): 507–509. doi:10.1016/0038-1098(86)90785-4.
• A.C. Jacko, J.O. Fjaerestad, B.J. Powell (2009). "A unified explanation of the Kadowaki–Woods ratio in strongly correlated metals". Nature Physics. 5 (6): 422–425. arXiv:0805.4275. doi:10.1038/nphys1249.{{cite journal}}: CS1 maint: multiple names: authors list (link)