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arXiv · 1209.3846

Evolution of superconductivity in LaO1-xFxBiS2 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-xFxBiS2 prepared by the high pressure synthesis technique were systematically studied. It was found that the high pressure annealing strongly the lattice as compared to the LaO1-xFxBiS2 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.

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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. 2012-09-18. Evolution of superconductivity in LaO1-xFxBiS2 prepared by high pressure technique. https://doi.org/10.1209/0295-5075%2F101%2F17004

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