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Non-generality of the Kadowaki-Woods ratio in correlated oxides

N. E. Hussey
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Abstract

An explicit expression for the Kadowaki-Woods ratio in correlated metals is derived by invoking saturation of the (high-frequency) Fermi-liquid scattering rate at the Mott-Ioffe-Regel limit. Significant deviations observed in a number of oxides are quantitatively explained due to variations in carrier density, dimensionality, unit cell volume and the number of individual sheets in the Brillouin zone. A generic re-scaling of the original Kadowaki-Woods plot is also presented.

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N. E. Hussey. 2004-09-10. Non-generality of the Kadowaki-Woods ratio in correlated oxides. https://doi.org/10.1143/jpsj.74.1107

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