Superconductivity in potassium-doped <i>p</i>-quaterphenyl

ORAL

Abstract

Exploring new materials with high temperature superconductivity has attracted great interests. By doping potassium into p-quaterphenyl with four phenyl rings connected by single C-C bond in para position, we find that this material can have two superconducting phases with the critical temperature of 4.3 K and 7.2 K, respectively. Their superconducting parameters and phase diagram are obtained and compared with other members of polyparaphenylene oligomers. The formation of bipolarons and the effect of dopant are determined by Raman scattering measurements.

Presenters

  • JiaFeng Yan

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

Authors

  • JiaFeng Yan

    • Center for High Pressure Science & Technology Advanced Research (HPSTAR)
  • Renshu Wang

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

    • 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
  • G. Huang

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

    • Center for High Pressure Science & Technology Advanced Research (HPSTAR)
  • 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
  • Guo-Hua Zhong

    • Beijing Computational Science Research Center
  • Hai-Qing Lin

    • Simulation of Physical Systems Division, Beijing Computational Science Research Center
    • Beijing Computational Science Research Center
    • Bejing Computational Science Research Center