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Pressure Enhancement of T c up to 150K in HgBa2Ca2Cu3Oy

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Advances in Superconductivity VI

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Abstract

The onset temperature(T c ) of Meissner signal for HgBa2Ca2Cu3Oy(which is 134K at ambient pressure) has been measured under high pressure up to 11GPa by using a cubic anvil device. The T c increases, without any change in both transition width and volume fraction, at the rate of dT c /dP = 2.0K/GPa up to 6GPa and at higher pressure dT c /dP decreases gradually with increasing pressure. The highest value observed in this experiment reaches 150K at 11GPa. This is higher than those reported for any other high-temperature superconductors. This result is discussed from the structural and electronic view points in comparison with other cuprate superconductors. This work was supported by NEDO.

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Author information

Authors and Affiliations

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

    Nobuo Môri & Hiroki Takahashi

  2. Superconductivity Research Laboratory, International Superconductivity Technology Center, Shinonome, Koto-ku, Tokyo 135, Japan

    Ayako Tokiwa-Yamamoto, Seiji Adachi, Hisao Yamauchi & Shoji Tanaka

Authors
  1. Nobuo Môri
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  2. Hiroki Takahashi
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  3. Ayako Tokiwa-Yamamoto
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  4. Seiji Adachi
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  5. Hisao Yamauchi
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  6. Shoji Tanaka
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Editors and Affiliations

  1. Faculty of Science, Hiroshima University, Kagamiyama, Higashi-Hiroshima, 724, Japan

    Toshizo Fujita

  2. Superconductivity Research Laboratory, ISTEC, Koto-ku, Tokyo, 135, Japan

    Yuh Shiohara

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© 1994 Springer-Verlag Tokyo

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Môri, N., Takahashi, H., Tokiwa-Yamamoto, A., Adachi, S., Yamauchi, H., Tanaka, S. (1994). Pressure Enhancement of T c up to 150K in HgBa2Ca2Cu3Oy . In: Fujita, T., Shiohara, Y. (eds) Advances in Superconductivity VI. Springer, Tokyo. https://doi.org/10.1007/978-4-431-68266-0_50

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  • DOI: https://doi.org/10.1007/978-4-431-68266-0_50

  • Publisher Name: Springer, Tokyo

  • Print ISBN: 978-4-431-68268-4

  • Online ISBN: 978-4-431-68266-0

  • eBook Packages: Springer Book Archive

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