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Optical conductivity of CuO_2 infinite-layer films

P. Dore·P. Calvani·G. De Marzi·A. Paolone·S. Lupi·G. Balestrino·G. Petrocelli·R. Desfeux
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Abstract

The infrared conductivity of CaCuO_2, SrCuO_{2-y}, and Sr_{0.85}Nd_{0.15}CuO_2 infinite-layer films is obtained from reflectivity measurements by taking into account the substrate contribution. SrCuO_{2-y} and Sr_{0.85}Nd_{0.15}CuO_2 exhibit extra-phonon modes and structured bands in the midinfrared, not found in stoichiometric CaCuO_2. These features mirror those observed in the perovskitic cuprates, thus showing that the polaronic properties of high-T_c superconductors are intrinsic to the CuO_2 planes.

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P. Dore, P. Calvani, G. De Marzi, A. Paolone, S. Lupi, G. Balestrino, G. Petrocelli, R. Desfeux. 1997-02-27. Optical conductivity of CuO_2 infinite-layer films. https://doi.org/10.1016/s0038-1098(97)00124-5

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