Evolution of magnetic phases in beta-Li2IrO3 under high magnetic fields

ORAL

Abstract

The Kitaev model describes a honeycomb net of Ising spins where each bond direction exchange-couples an orthogonal component of spin. Remarkably, this model is exactly solvable and predicts a quantum spin liquid ground state. Within the past decade, several materials have been theorized to realize the Kitaev model in their magnetic interactions. One of these materials is beta-Li2IrO3, which crystallizes in a 3D "hyperhoneycomb" structure. While this material does not possess a quantum spin liquid ground state, it contains a variety of interesting magnetic phases that coexist at intermediate temperature. In this talk, we describe how these phases evolve under strong magnetic fields using the state-of-the art technique of resonant torsion magnetometry.

*This material is based upon work supported by the National Science Foundation Graduate Research Fellowship under Grant No. DGE 1752814. This work was also supported by the Gordon and Betty Moore Foundation EPiQS Initiative through Grant No. GBMF4374.

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Presenters

  • Vikram Nagarajan

    • University of California, Berkeley
    • Argonne National Lab
    • Physics, University of California, Berkeley

Authors

  • Vikram Nagarajan

    • University of California, Berkeley
    • Argonne National Lab
    • Physics, University of California, Berkeley

  • Kimberly Modic

    • Max Planck Institute for Chemical Physics of Solids
    • Max Planck Dresden
    • Max Planck Institute
    • max planck dresden

  • John Singleton

    • National High Magnetic Field Lab, Los Alamos
    • Los Alamos National Laboratory
    • NHMFL, Los Alamos National Laboratory
    • National High Magnetic Field Laboratory, Los Alamos National Laboratory
    • NHMFL, Los Alamos National Lab
    • Los Alamos National Lab.

  • Mun K. Chan

    • Los Alamos National Laboratory
    • Pulse Field Facility, National High Magnetic Field Laboratory, Los Alamos National Laboratory
    • National High Magnetic Field Laboratory, LANL
    • University of Minnesota
    • NHMFL

  • Kevin Wang

    • University of California, Berkeley

  • James Analytis

    • University of California, Berkeley
    • Department of Physics, University of California, Berkeley
    • Physics, University of California Berkeley
    • Physics, University of California Berkerley
    • Physics, University of California, Berkeley
    • physics, University of California, Berkeley