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Annealing Effect on Superconductivity of La2CuO4 Single Crystals

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Book cover The Physics and Chemistry of Oxide Superconductors

Part of the book series: Springer Proceedings in Physics ((SPPHY,volume 60))

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Abstract

La2CuO4 single crystals grown at an oxygen pressure of 0.2 MPa by TSFZ method are superconducting below 32 K, and show a semiconducting behavior in nonsuperconducting state. The single crystals of La2Cu04 are changed from superconductors to semiconductors by annealing in argon, and are returned to superconductors by annealing at ambient pressure of oxygen. Therefore, superconductivity of the La2CuO4 single crystals is due to excess oxygen.

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Author information

Authors and Affiliations

  1. Institute of Inorganic Synthesis, Faculty of Engineering, Yamanashi University, Miyamae 7, Kofu 400, Japan

    I. Tanaka, H. Takahashi & H. Kojima

Authors
  1. I. Tanaka
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  2. H. Takahashi
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  3. H. Kojima
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Editor information

Editors and Affiliations

  1. Institute for Solid State Physics, University of Tokyo, Roppongi, Minato-ku, Tokyo 106, Japan

    Yasuhiro Iye  & Hiroshi Yasuoka  & 

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© 1992 Springer-Verlag Berlin, Heidelberg

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Tanaka, I., Takahashi, H., Kojima, H. (1992). Annealing Effect on Superconductivity of La2CuO4 Single Crystals. In: Iye, Y., Yasuoka, H. (eds) The Physics and Chemistry of Oxide Superconductors. Springer Proceedings in Physics, vol 60. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-77154-5_7

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  • DOI: https://doi.org/10.1007/978-3-642-77154-5_7

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-77156-9

  • Online ISBN: 978-3-642-77154-5

  • eBook Packages: Springer Book Archive

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