Evolution of superconductivity in LaO1-xFxBiS 2 prepared by high-pressure technique

K. Deguchi, Y. Mizuguchi, S. Demura, H. Hara, T. Watanabe, S. J. Denholme, M. Fujioka, H. Okazaki, T. Ozaki, H. Takeya, T. Yamaguchi, O. Miura, Y. Takano

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    Abstract

    Novel BiS2-based superconductors LaO1-xF xBiS2 prepared by a high-pressure synthesis technique were systematically studied. It was found that the high-pressure annealing strongly shrank the lattice as compared to the LaO1-xFxBiS 2 samples prepared by conventional solid-state reaction at ambient pressure. Bulk superconductivity was observed within a wide F concentration range of x = 0.2-0.7. On the basis of those results, we have established a phase diagram of LaO1-xFxBiS2.

    Original languageEnglish
    Article number17004
    JournalEPL
    Volume101
    Issue number1
    DOIs
    Publication statusPublished - 2013 Jan 1

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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    Deguchi, K., Mizuguchi, Y., Demura, S., Hara, H., Watanabe, T., Denholme, S. J., Fujioka, M., Okazaki, H., Ozaki, T., Takeya, H., Yamaguchi, T., Miura, O., & Takano, Y. (2013). Evolution of superconductivity in LaO1-xFxBiS 2 prepared by high-pressure technique. EPL, 101(1), [17004]. https://doi.org/10.1209/0295-5075/101/17004