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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, Florida State University

Authors

  • Kuan-Wen Chen

    University of Michigan, Florida State University

  • Tomoya Asaba

    Univ of Michigan - Ann Arbor, Physics, University of Michigan, Los Alamos National Laboratory, University of Michigan

  • Ziji Xiang

    Univ of Michigan - Ann Arbor, Department of Physics, University of Michigan, University of Michigan

  • Colin B Tinsman

    Univ of Michigan - Ann Arbor, Department of Physics, University of Michigan, University of Michigan

  • Lu Chen

    Univ of Michigan - Ann Arbor, Department of Physics, University of Michigan, University of Michigan

  • Jiaqiang Yan

    Materials Science and Engineering, The University of Tennessee, Oak Ridge National Lab, Oak Ridge National Laboratory, Materials Science and Technology Division, Oak Ridge National Laboratory, Materials Science and Technology Division, Oak Ridge National Lab, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA

  • Lu Li

    Univ of Michigan - Ann Arbor, Department of Physics, University of Michigan, Physics, University of Michigan, University of Michigan