Field dependence of magnetic order in frustrated diamond-like antiferromagnet LiYbO<sub>2</sub>

ORAL

Abstract

Frustrated magnetism is a hotbed for searching for new electronic phases of matter. This can theoretically lead to states such as the spiral spin liquid where coplanar degenerate spiral states contain coherently fluctuating spins. One proposed venue for this state has been in the cubic diamond lattice arising from frustration in a J1-J2 Hamiltonian. Here we propose a new materials system where spiral spin liquids may potentially be observed based upon a tetragonally-elongated diamond lattice. This is exemplified by effective J = 1/2 moments within LiYbO2 via a combination of low-energy inelastic neutron scattering, crystalline electric field analysis, and linear spin wave theory. Magnetic order and its evolution under magnetic field will be discussed.

*This work was supported by the US Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering under award DE-SC0017752 and National Science Foundation Graduate Research Fellowship Program under grant no. 1650114.

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Presenters

  • Mitchell Bordelon

    • University of California, Santa Barbara

Authors

  • Mitchell Bordelon

    • University of California, Santa Barbara

  • Lorenzo J Posthuma

    • University of California, Santa Barbara

  • Eric M Kenney

    • Physics, Boston College

  • 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

  • Craig Brown

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

  • Arnab Banerjee

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

  • Michael John Graf

    • Physics, Boston College

  • Stephen Wilson

    • University of California, Santa Barbara
    • Materials Department, University of California, Santa Barbara
    • Materials Engineering, University of California, Santa Barbara
    • California NanoSystems Institute/Materials, University of California, Santa Barbara