Abstract
The effect of fluctuations on ac conductivity of layered superconductors both forc-axis andab-plane electromagnetic wave polarizations is shown. The fluctuation contributions to conductivity (paraconductivity, Maki-Thompson anomalous contribution, one-electron density of states renormalization) have different physical nature and signs and are found to be suppressed by the external field for different characteristic frequencies. As a result the nonmonotonic frequency dependence (pseudogap) in the infrared optical conductivity of HTS film is predicted. The effect has to be especially pronounced inc-axis conductivity.
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