Pressure-temperature phase diagrams of CaK(Fe<sub>1-x</sub>Ni<sub>x</sub>)<sub>4</sub>As<sub>4</sub>

ORAL

Abstract

Recently, hedgehog spin-vortex crystal magnetism has been identified experimentally in Ni-doped iron-based superconductor CaKFe4As4[1]. In this work, the pressure dependence of the superconducting and magnetic transition temperatures was studied on Ni-doped CaKFe4As4 single crystals. In-plane resistivity was measured under hydrostatic pressure up to ~5 GPa with magnetic fields parallel to tetragonal c-axis. We will present the pressure-temperature phase diagrams of CaK(Fe1-xNix)4As4. Evolution of pressure response with composition is explored and the interaction between superconductivity and magnetic order will be discussed.
[1] Reference W.R.Meier et al. arXiv:1706.01067

*This work is supported by the US DOE, Basic Energy Sciences, Materials Science and Engineering Division under contract No. DE-AC02-07CH11358. L. X. was supported, in part, by the W. M. Keck Foundation. W. R. M. was supported by the Gordon and Betty Moore Foundation's EPiQS Initiative through Grant GBMF44

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Presenters

  • Li Xiang

    • Ames Laboratory and Iowa State Univ
    • Iowa State University/Ames Laboratory
    • Ames Laboratory and Iowa State University

Authors

  • Li Xiang

    • Ames Laboratory and Iowa State Univ
    • Iowa State University/Ames Laboratory
    • Ames Laboratory and Iowa State University

  • William Meier

    • Iowa state university/Ames Laboratory
    • Iowa State University and Ames Laboratory
    • Iowa State University/Ames Laboratory
    • Ames Laboratory and Iowa State University, Dept. of Physics and Astronomy
    • Dept. of Physics, Iowa State Univ
    • Ames Laboratory

  • Udhara Kaluarachchi

    • The Ames Laboratory
    • Iowa state university/Ames Laboratory
    • Ames Laboratory and Iowa State Univ
    • Iowa State University/Ames Laboratory
    • Ames Laboratory and Iowa State University

  • Sergey Bud'ko

    • The Ames Laboratory
    • Iowa state university/Ames Laboratory
    • Iowa State University and Ames Laboratory
    • Iowa State University/Ames Laboratory
    • Iowa State University / Ames Laboratory
    • Ames Laboratory and Iowa State University, Dept. of Physics and Astronomy
    • Dept. of Physics, Iowa State Univ
    • Ames Lab
    • Ames Laboratory U.S. DOE and Department of Physics and Astronomy, Iowa State University
    • Ames Laboratory
    • Department of Physics and Astronomy, Ames Laboratory and Iowa State University

  • Paul Canfield

    • Ames Laboratory and Iowa State University
    • Ames Laboratory, Iowa State University
    • Department of Physics and Astronomy, Iowa State University
    • Dept. of Physics and Astronomy, Ames Laboratory/Iowa State University
    • Iowa state university/Ames Laboratory
    • Ames Laboratory and Iowa State Univ
    • Iowa State University and Ames Laboratory
    • Iowa State University/Ames Laboratory
    • Iowa State University
    • Iowa State University / Ames Laboratory
    • Dept. of Physics, Iowa State Univ
    • Ames Lab
    • Ames Laboratory U.S. DOE and Department of Physics and Astronomy, Iowa State University
    • Iowa State Univ
    • Ames Laboratory
    • Department of Physics and Astronomy, Ames Laboratory and Iowa State University