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Observation of the Energy Gap above T c in (Bi,Pb)2Sr2Ca2Cu3O10+δ using Break-Junction Tunneling

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Abstract

Tunneling measurements of (Bi,Pb) 2 Sr 2 Ca 2 Cu 3 O 10+δ have been carried out with break junction to study the gap feature above T c = 106 K. The decreasing gap magnitude with increasing the temperature does not disappear at T c for the most significant data. The gap-closing temperature is found to be T* ≃ 160 K.

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Author notes

  1. Y. Sezaki

    Present address: SHIMADZU CORPORATION, Kyoto, 604-8511, Japan

Authors and Affiliations

  1. Faculty of Integrated Arts and Sciences, Hiroshima University, Higashi-Hiroshima, 739-8521, Japan

    T. Ekino, Y. Sezaki & H. Fujii

  2. Graduate School of Advanced Sciences of Matter, Hiroshima University, Higashi-Hiroshima, 739-8526, Japan

    T. Ekino & S. Hashimoto

Authors
  1. T. Ekino
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  2. Y. Sezaki
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  3. S. Hashimoto
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  4. H. Fujii
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Ekino, T., Sezaki, Y., Hashimoto, S. et al. Observation of the Energy Gap above T c in (Bi,Pb)2Sr2Ca2Cu3O10+δ using Break-Junction Tunneling. Journal of Low Temperature Physics 117, 359–363 (1999). https://doi.org/10.1023/A:1022517600001

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  • DOI: https://doi.org/10.1023/A:1022517600001

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