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Study of the spin orbit coupling metal Cd<sub>2</sub>Re<sub>2</sub>O7 by torque magnetometry

ORAL

Abstract

Cd2Re2O7 is the first superconductor in pyrochlore oxide family and a prototype compound for spontaneous inversion symmetry breaking with strong spin-orbit coupling. The inversion breaking transition near 200K from centrosymmetric cubic phase to the noncentrosymmetric tetragonal phase. Another structural transition occurs at 120K. However, the distortions are very small and identified controversially in different measurement techniques. Quantum oscillation is very sensitive to the differences of the structures and ideally to study the inversion symmetry breaking from spin splitting Fermi surfaces. In this talk, we will discuss the Fermiology of Cd2Re2O7 by torque magnetometry and compare with the density functional calculations.

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Presenters

  • Kuan-Wen Chen

    University of Michigan

Authors

  • Kuan-Wen Chen

    University of Michigan

  • Tomoya Asaba

    Los Alamos National laboratory, University of Michigan

  • Yang Zhang

    Massachusetts Institute of Technology MIT, Massachusetts Institute of Technology

  • Guoxin Zheng

    University of Michigan

  • Ziji Xiang

    University of Michigan

  • Colin B Tinsman

    University of Michigan

  • Lu Chen

    University of Michigan

  • Jiaqiang Yan

    Materials Science and Technology Division, Oak Ridge National Lab, Oak Ridge National Laboratory, University of Tennessee, Oak Ridge National Lab, Materials Science and Technology Division, Oak Ridge National Laboratory, Materials Science and Technology, Oak Ridge National Laboratory, Oak Ridge National Laboratory, Materials Science and Technology Division

  • David George Mandrus

    Materials Science and Technology Division, Oak Ridge National Labratory, Materials Science and Engineering, University of Tennessee, Department of Materials Science and Engineering, University of Tennessee, University of Tennessee, Department of Materials Science and Engineering, University of Tennessee Knoxville, Department of Materials Science & Engineering, University of Tennessee, Knoxville, Tennessee 37996, USA, Oakridge National Laboratory, Materials Science and Engineering, University of Tennessee, Knoxville, Oak Ridge National Laboratory, University of Tennessee - Knoxville, Materials Science and Technology Division, Oak Ridge National Laboratory, Department of Physics, University of Tennessee Knoxville, Materials Science and Technology, Oak Ridge National Laboratory, Oak Ridge National Laboratory, Materials Science and Technology Division, Department of Materials Science, The University of Tennessee, University of Tennessee, Knoxville

  • Liang Fu

    Department of Physics, Massachusetts Institute of Technology, Massachusetts Institute of Technology MIT, Massachusetts Institute of Technology

  • Lu Li

    University of Michigan