The infrared conductivity σ(ω) of very-high-resistivity ruthenates and cuprates (in the normal state) was recently found to deviate from the usual Drude behavior - σDrude(ω) ∝ ω−2. We have included the Pippard ineffectiveness condition in the analysis of σ(ω), and obtained that for very-high-resistivity materials, σ(ω) ∝ ω−α, with α ¿ 2. Therefore, the Pippard condition might be a partial explanation for the non-Drude behavior observed for the infrared conductivity of the ruthenates and cuprates.
|Original language||American English|
|Journal||HAIT Journal of Science and Engineering|
|State||Published - 2004|