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Interlayer Conductivity in the Superconductor Tl-Ba-Cu-O: Energetics and Energy Scales

A. S. Katz·S. I. Woods·E. J. Singley·T. W. Li·M. Xu·D. G. Hinks·R. C. Dynes·D. N. Basov
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Abstract

We report on infrared studies of the c-axis electrodynamics of Tl-Ba-Cu-O (Tl-2201) crystals. A sum rule analysis reveals spectral weight shifts that can be interpreted as a kinetic energy change at the superconducting transistion. In optimally doped crystals, showing an incoherent normal state response, the kinetic energy is lowered at T < Tc, but no significant change is found in the over-doped samples, which have more coherent conductivity at T > Tc.

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A. S. Katz, S. I. Woods, E. J. Singley, T. W. Li, M. Xu, D. G. Hinks, R. C. Dynes, D. N. Basov. 1999-05-12. Interlayer Conductivity in the Superconductor Tl-Ba-Cu-O: Energetics and Energy Scales. https://doi.org/10.1103/physrevb.61.5930

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