Abstract
We have studied the far infrared reflectance of the mixed phase superconductor Y1.2Ba0.8CuO4−y. The reflectance spectrum shows sharp phonon resonances and an electronic contribution that we attribute to reflection at a mesh-like structure of the conducting phase embedded in nonconducting material; in comparison, the reflectance of single phase superconducting material is mainly determined by the dynamical electronic conductivity.
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Renk, K.F., Lengfellner, H., Obermayer, P.E. et al. Far infrared reflectance of a mixed phase Y-Ba-Cu-O superconductor. Int J Infrared Milli Waves 8, 1525–1530 (1987). https://doi.org/10.1007/BF01012439
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DOI: https://doi.org/10.1007/BF01012439