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Single Crystal Growth and Magnetic-Thermal Characterization of a Rare-Earth Based Breathing Pyrochlore Family

ORAL

Abstract

The Breathing Pyrochlore (BP) lattice, which consists of three dimensionally corner sharing tetrahedra with alternating sizes, has recently attracted much attention due to presence of frustrated or competing interactions. BP system has also been proposed to host of many intriguing phenomena such as Quantum Spin Liquid, Quantum Spin Ice and Weyl magnons, due to anisotropic spin-spin interactions [1-3]. Large and high quality single crystals of BP compounds are highly needed, in order to advance these hypotheses experimentally. We have successfully grown single crystals of a rare-earth BP family, using the uniquely modified travelling solvent floating zone techniques. Additionally, we have performed specific heat, thermal conductivity, AC /DC magnetic susceptibility, magnetization, magneto-dielectric, μSR and X-ray diffraction measurements to probe the physical properties of these new compounds. In this talk I will present the results of our single crystal growth and characterization efforts.

References:
[1] Li, Fei-Ye, et al. Nature communications 7, 12691 (2016).
[2] Savary, Lucile, et al. Physical Review B 94, 075146 (2016).
[3] Yan, Han, et al. arXiv preprint arXiv:1902.10934 (2019).

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Presenters

  • Rabindranath Bag

    Department of Physics, Duke University, Durham, North Carolina, USA

Authors

  • Rabindranath Bag

    Department of Physics, Duke University, Durham, North Carolina, USA

  • Lalit Yadav

    Department of Physics, Duke University, Department of Physics, Duke University, Durham, North Carolina, USA

  • Zhenzhong Shi

    Department of Physics, Duke University, Department of Physics, Duke University, Durham, North Carolina, USA, Dept. of Phys. & Natl. High Magnetic Field Lab., Florida State Univ., Duke University

  • Sachith Dissanayake

    Department of Physics, Duke University, Department of Physics, Duke University, Durham, North Carolina, USA, Physics, Duke University, Oak Ridge National Lab, Duke University, Oak Ridge National Laboratory

  • David E Graf

    Florida State University, National High Magnetic Field Laboratory, Florida State University, Department of Physics, National High Magnetic Field Laboratory, Florida State University, Florida, USA, National High Magnetic Field Laboratory, National High Magnetic Field Lab, Florida State University, National High Magnetic Field Laboratory and Department of Physics, Florida State University, Florida State Univ, Natl High Magnetic Field Lab, National High Magnetic Field Lab, Tallahassee, FL 32310, USA, National High Magnetic Field Laboratory, 1800 E. Paul Dirac Drive, Tallahassee, FL 32310, USA, National High Magnetic Field Laboratory-Florida State University, National High Magnetic Field Laboratory, Tallahassee, FL, NHMFL, Florida State University, NHMFL

  • Eun Sang Choi

    Department of Physics, National High Magnetic Field Laboratory, Florida State University, Florida, USA, National High Field Magnet Laboratory, National High Magnetic Field Laboratory, Florida State University, National High Magnetic Field Laboratory, Florida State University, National High Magnetic Field Lab

  • Franz Lang

    Department of Physics, University of Oxford, Department of Physics, University of Oxford, Oxford, UK, ISIS, STFC

  • Catalina Salazar Mejia

    Department of Physics, Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany

  • Elizabeth Green

    Department of Physics, Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany, National High Magnetic Field Laboratory

  • Stephen Blundell

    Department of Physics, University of Oxford, Department of Physics, University of Oxford, Oxford, UK, University of Oxford, Physics, University of Oxford

  • Sara Haravifard

    Department of Physics and Department of Mechanical Engineering & Materials Science, Duke University, Department of Physics and Department of Mechanical Engineering & Materials Science, Duke University, North Carolina, USA, Department of Physics, Department of Mechanical Engineering & Materials Science, Duke University, Duke University