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Studying the Dynamic Magnetic Properties of the Triangular Antiferromagnet YbZnGaO4 in Applied Field

ORAL

Abstract

In the last few years Yb-based triangular antiferromagnets emerged as promising quantum spin liquid candidates, and subsequently their ground states have been the subject of ardent debates. Though many experimental and theoretical studies have been devoted to investigating the magnetic properties of these systems at very low temperatures, and exploring a range of possible explanations for the observed spin liquid-like phenomena, a definitive description remains elusive mainly due to thermal fluctuations and chemical disorder. In this talk we discuss neutron scattering experiments in applied magnetic field to probe features of the “partially magnetized” state in YbZnGaO4, which generated great excitement in YbMgGaO4 as a possible signature in support of spinon Fermi surface hypothesis [1].

[1] Shen, Y., Li, Y.-D., Walker, H.C., Steffens, P., Boehm, M., Zhang, X., Shen, S., Wo, H., Chen, G., and Zhao, J. Fractionalized excitations in the partially magnetized spin liquid candidate YbMgGaO4. Nat. Commun. 9, 4138 (2018).

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Presenters

  • William Steinhardt

    Department of Physics, Duke University

Authors

  • William Steinhardt

    Department of Physics, 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

  • 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

  • Nicholas Butch

    NIST Center for Neutron Research, National Institute of Standards and Technology, National Institute of Standards and Technology, Center of Neutron Research, National Institute of Standards and Technology, Center for Neutron Research, National Institute of Standards and Technology, NIST Center for Neutron Research, NIST center for neutron research, NIST, NIST Center for Neutron Research, National Institute of Standards and Technology,, University of Maryland, College Park & NIST, National Institute of Standards and Technology Center for Neutron Research

  • 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

  • Andrey Podlesnyak

    Neutron Scattering Division, Oak Ridge National Laboratory, Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennesse, Oak Ridge National Lab

  • Yaohua Liu

    Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge National Lab, Oak Ridge National Laboratory

  • Yang Zhao

    Center for Neutron Research, National Institute of Standards and Technology, Department of Materials Sciences and Engineering, University of Maryland, College Park, MD

  • Guangyong Xu

    Center of Neutron Research, National Institute of Standards and Technology, Neutron-Condensed Matter Science Group, National Institute of Standards and Technology, National Institute of Standards and Technology, NIST, Center for Neutron Research, National Institute of Standards and Technology, NIST Center for Neutron Research, Oak Ridge National Laboratory

  • Jeffrey Lynn

    NIST Center for Neutron Research, National Institute of Standards and Technology, NIST, Center for Neutron Research, National Institute of Standards and Technology, National Institute of Standards and Technology, NIST Center for Neutron Research

  • Casey Marjerrison

    Department of Physics, Duke University, McMaster Univ, Duke University

  • 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