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A new frontier for superconductivity

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Monolayer films of iron selenide deposited on strontium titanate display signatures of superconductivity at temperatures as high as 109 K. These recent developments may herald a flurry of exciting findings concerning superconductivity at interfaces.

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Figure 1: a,b, The critical temperature (TC) of superconducting materials discussed in the text.
Figure 2: a, A ball-and-stick model of an FeSe/SrTiO3 heterostructure.
Figure 3: a, A sketch of the in-situ probe for four-point-contact resistance measurements used in ref. 10.

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Acknowledgements

I.B. is supported by the US Department of Energy, Office of Basic Energy Sciences, Materials Sciences and Engineering Division. C.A. acknowledges support from NSF under NSF-DMR MRSEC 1119826.

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Authors and Affiliations

  1. USA and in the Department of Applied Physics at Yale University, Ivan Bozovic is at Brookhaven National Laboratory, Upton, New York 11973, New Haven, Connecticut 06511, USA,

    Ivan Bozovic

  2. Charles Ahn is in the Department of Applied Physics at Yale University, New Haven, Connecticut 06511, USA,

    Charles Ahn

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  1. Ivan Bozovic
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  2. Charles Ahn
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Bozovic, I., Ahn, C. A new frontier for superconductivity. Nature Phys 10, 892–895 (2014). https://doi.org/10.1038/nphys3177

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