Doping-dependent nematic susceptibility and strain-tunable T<sub>c</sub> in FeTe<sub>1-x</sub>Se<sub>x</sub>

ORAL

Abstract

In comparison to the end member FeSe, the role of nematicity in the FeTe1-xSex family is less explored. Using the elastoresistivity technique, we measured the nematic susceptibility of FeTe1-xSex over a wide range of doping, and revealed the presence of strong B2g nematic fluctuations despite the absence of static nematic order. We also studied the effects of anisotropic strain on the superconducting transition temperature, providing insight into the interplay between nematic fluctuations and the superconductivity.

*NSF MRSEC at UW DMR1719797 and The Gordon and Betty Moore Foundation’s EPiQS Initiative Grant GBMF6759

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Presenters

  • Qianni Jiang

    • Physics, University of Washington
    • Physics, University of Washington, Seattle
    • University of Washington

Authors

  • Qianni Jiang

    • Physics, University of Washington
    • Physics, University of Washington, Seattle
    • University of Washington

  • Yue Shi

    • Materials Science & Engineering, University of Washington
    • Materials Science and Engineering, University of Washington, Seattle

  • Jiun-Haw Chu

    • Physics, University of Washington
    • Physics, University of Washington, Seattle
    • University of Washington