Abstract
A new family of high-temperature superconductors is described, with the general formula Pb2Sr2ACu3O8+δ. Although they have the planes of CuO5 square pyramids characteristic of the other copper-oxide superconductors, the new compounds belong to a distinct structural series, with wide scope for elemental substitution. Their unusual electronic configuration also gives new insight into the role of charge distribution among the structural building blocks in controlling superconductivity.
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References
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Cava, R., Batlogg, B., Krajewski, J. et al. Superconductivity near 70 K in a new family of layered copper oxides. Nature 336, 211–214 (1988). https://doi.org/10.1038/336211a0
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DOI: https://doi.org/10.1038/336211a0
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