Pressure-temperature phase diagrams of CaK(Fe1-xNix)4As4

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

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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