Pressure-induced superconductivity in palladium sulfide

ORAL

Abstract

An extend study on PdS is carried out with the measurements of the resistivity, Hall coefficient, Raman scattering, and X-ray diffraction at high pressures up to 42.3 GPa. With increasing pressure, superconductivity is observed accompanying with a metallic phase emerging above 19.5 GPa. The coexistence of semiconducting and metallic phases observed at normal state is confirmed by the Raman scattering and X-ray diffraction between 19.5 and 29.5 GPa. After that, only the metallic normal state phase maintains with an almost constant superconducting transition temperature. These results highlight that the important role of pressure played in inducing superconductivity in these narrow band-gap semiconductors.

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Presenters

  • Hao Yu

    • Center for High Pressure Science and Technology Advanced Research

Authors

  • Liu-Cheng Chen

    • Center for High-Pressure Science & Technology Advanced Research
    • Center for High Pressure Science and Technology Advanced Research

  • Hao Yu

    • Center for High Pressure Science and Technology Advanced Research

  • Hongjie Pang

    • Center for High Pressure Science and Technology Advanced Research

  • Binbin Jiang

    • Institute of Ceramics Chinese , Academy of Science
    • Institute of Ceramics, Chinese Academy of Science

  • Shi Xun

    • Institute of Ceramics, Chinese Academy of Science

  • Lidong Chen

    • Institute of Ceramics Chinese , Academy of Science
    • Institute of Ceramics, Chinese Academy of Science

  • Xiao-Jia Chen

    • Center for High Pressure Science and Technology Advanced Research
    • Center for High Pressure Science & Technology Advanced Research (HPSTAR)
    • Center for High Pressure Science & Technology Advanced Research
    • Center for High-Pressure Science & Technology Advanced Research