Electrostatic doping of the transparent insulator potassium tantalate with an electric double-layer transistor has allowed superconductivity to be observed in this material for the first time.
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Prassides, K. Superconductivity at the double. Nature Nanotech 6, 400–401 (2011). https://doi.org/10.1038/nnano.2011.104
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DOI: https://doi.org/10.1038/nnano.2011.104
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