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Tuning Fork measurement on spin-orbit coupled metal

ORAL

Abstract

Spin-orbit-coupled metal Cd2Re2O7 has revealed several interesting phenomena, including the multipolar order and superconductivity. To understand these phenomena, the Landau Level quantization and quantum oscillation are essential. However, the early quantum oscillation pattern observed in torque magnetometry missed small orbits expected from the band structure calculation. To solve the problem, we applied tuning-fork-based torque differential magnetometry to search for the quantum oscillation patterns of the small Fermi Surface orbits in Cd2Re2O7. The torque differential magnetometry measures the derivative of the magnetic torque relative to the magnetic field tilt angles, thus becoming very sensitive to the anisotropy of Fermi Surfaces. We will also compare the resolved orbital sizes with those determined from torque magnetometry.

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Presenters

  • Guoxin Zheng

    University of Michigan

Authors

  • Guoxin Zheng

    University of Michigan

  • Lu Chen

    University of Michigan

  • Kuan-Wen Chen

    University of Michigan

  • Ziji Xiang

    University of Michigan

  • Dechen Zhang

    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

  • Lu Li

    University of Michigan