Type-I superconductivity of the layered silver oxide Ag5Pb2O6

  title={Type-I superconductivity of the layered silver oxide Ag5Pb2O6},
  author={Shingo Yonezawa and Yoshiteru Maeno},
  journal={Physical Review B},
We report zero-resistivity transition and the details of magnetic transition of a layered silver oxide Ag$_5$Pb$_2$O$_6$ single crystal, which make definitive evidence of superconductivity in this compound. In the AC susceptibility of a mono-crystal, we observed large supercooling, as well as positive peaks in the real part of the susceptibility indicating the reversibility of magnetic process. These observations reveal that Ag$_5$Pb$_2$O$_6$ is probably the first oxide that shows type-I… 

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Since the figure is not given in that article, we estimated its value from the graph of band dispersion