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Measurement of the Far Infrared Magneto-Conductivity Tensor of Superconducting YBa$_2$Cu$_3$O$_{7-δ}$ Thin Films

H. -T. S. Lihn·S. Wu·S. Kaplan·H. D. Drew
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Abstract

We report measurements of the far infrared transmission of superconducting YBa$_2$Cu$_3$O$_{7-δ}$ thin films from 5 cm$^{-1}$ to 200 cm$^{-1}$ in fields up to 14$T$. A Kramers-Kronig analysis of the magneto-transmission spectrum yields the magneto-conductivity tensor. The result shows that the magneto-conductivity of YBa$_2$Cu$_3$O$_{7-δ}$ is dominated by three terms: a London term, a low frequency Lorentzian ($ω_1\approx $ 3 cm$% ^{-1}$) of width $Γ_1=$ 10 cm$^{-1}$ and a finite frequency Lorentzian of width $Γ_2=$ 17 cm$^{-1}$ at $ω_2=$ 24 cm$^{-1}$ in the hole cyclotron resonance active mode of circular polarization.\\

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H. -T. S. Lihn, S. Wu, S. Kaplan, H. D. Drew. 1996-01-26. Measurement of the Far Infrared Magneto-Conductivity Tensor of Superconducting YBa$_2$Cu$_3$O$_{7-δ}$ Thin Films. https://doi.org/10.1103/physrevlett.76.3810

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