Abstract
The effect of fluctuations on the ac conductivity of a layered superconductor both for c-axis and ab-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 at different characterisitic 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 in the case of the electromagnetic field polarization along c-axis.
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© 1997 Springer Science+Business Media Dordrecht
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Federici, F., Varlamov, A.A. (1997). The Fluctuation Induced Pseudogap in the Infrared Optical Conductivity of High Temperature Superconductors. In: Ausloos, M., Varlamov, A.A. (eds) Fluctuation Phenomena in High Temperature Superconductors. NATO ASI Series, vol 32. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5536-6_10
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DOI: https://doi.org/10.1007/978-94-011-5536-6_10
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