Non-generality of the Kadowaki-Woods Ratio in Correlated Oxides(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
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概要
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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.
- 社団法人日本物理学会の論文
- 2005-04-15