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Complex conductivity of $\rm Y_{1-x}Pr_xBa_2Cu_3O_7$ thin films measured by coherent terahertz spectroscopy

J. O. White·R. Buhleier·S. D. Brorson·I. E. Trofimov·H. -U. Habermeier·J. Kuhl
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Abstract

The complex transmission of Y_{1-x}Pr_xBa_2Cu_3O_7 single crystal thin films has been measured in the range 0.2-1.0 THz using time domain spectroscopy. The complex conductivity is calculated without using a Kramers-Kronig analysis. All of the superconducting samples show a peak in $σ_1(T)$ below $T_c$. The underdoped samples show a deviation from $1/(α+βT)$ behavior above $T_c$ that may be linked with the onset of a spin gap.

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J. O. White, R. Buhleier, S. D. Brorson, I. E. Trofimov, H. -U. Habermeier, J. Kuhl. 1994-06-30. Complex conductivity of $\rm Y_{1-x}Pr_xBa_2Cu_3O_7$ thin films measured by coherent terahertz spectroscopy. https://doi.org/10.1016/0921-4534(94)92234-9

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