Correlation between Fermi surface reconstruction and superconductivity in pressurized FeTe0.55Se0.45

  title={Correlation between Fermi surface reconstruction and superconductivity in pressurized 
  author={Gongchang Lin and Jing Guo and Yanglin Zhu and Shu Cai and Yazhou Zhou and Cheng Huang and Chongli Yang and Sijin Long and Qi Wu and Zhiqiang Mao and Tao Xiang and Liling Sun},
  journal={Physical Review B},
  • G. Lin, Jing Guo, +9 authors Liling Sun
  • Published 2 April 2020
  • Physics
  • Physical Review B
Here we report the results of the high-pressure Hall coefficient (${R}_{H}$) measurements, combined with the high-pressure resistance measurements, at different temperatures on the putative topological superconductor ${\mathrm{FeTe}}_{0.55}{\mathrm{Se}}_{0.45}$. We find the intimate correlation of sign change of ${R}_{H}$, a fingerprint to manifest the reconstruction of Fermi surface, with structural phase transition and superconductivity. Below the critical pressure (${P}_{\mathrm{c}}$) of 2.7… 

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