Measurement of a 1/2 magnetization plateau in a triangular antiferromagnet

ORAL

Abstract

Frustrated magnetic systems lend themselves to a wealth of nontrivial behaviors. Among these are plateaus in magnetization with the application of an external field, which can result from quantum fluctuations or a strong magnetocrystalline anisotropy. The existence of these plateaus at specific fractions of the saturated magnetization has been observed in a handful of systems with distinct physics. This talk will discuss our discovery of a ½ magnetization plateau in a frustrated antiferromagnet on a triangular lattice using fields up to 60T, as well as our minimal model, informed by ab initio calculations, that predicts this behavior.

*This work was supported as part of the Center for Novel Pathways to Quantum Coherence in Materials, an Energy Frontier Research Center funded by the US Department of Energy, Office of Science, Basic Energy Sciences. Work by J.G.A. and S.C.H. was funded in part by the Gordon and Betty Moore Foundation’s EPiQS Initiative, Grant No. GBMF9067 to J.G.A. Work by T.C. and D.E.P. was supported by NSF Graduate Research Fellowship Program, NSF DGE No. 1752814. A portion of this work was performed at the National High Magnetic Field Laboratory, which is supported by National Science Foundation Cooperative Agreement No. DMR-1644779 and the State of Florida.

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Presenters

  • Shannon Haley

    • University of California, Berkeley

Authors

  • Shannon Haley

    • University of California, Berkeley

  • Sophie Weber

    • University of California, Berkeley

  • Taylor Cookmeyer

    • University of California, Berkeley

  • Daniel E Parker

    • University of California, Berkeley

  • Eran Maniv

    • University of California, Berkeley

  • Nikola Maksimovic

    • University of California, Berkeley

  • Caolan John

    • University of California, Berkeley
    • Massachusetts Institute of Technology

  • Spencer Doyle

    • University of California, Berkeley
    • Department of Physics, Harvard University

  • Ariel Maniv

    • NRCN, Beer Sheva, Israel
    • NRCN

  • Sanath Ramakrishna

    • National High Magnetic Field Laboratory, Tallahassee, Florida
    • Florida State University

  • Arneil P Reyes

    • National High Magnetic Field Laboratory, Tallahassee, Florida
    • National High Magnetic Field Laboratory
    • Florida State University

  • John Singleton

    • National High Magnetic Field Laboratory, Los Alamos National Laboratory
    • Los Alamos National Lab
    • Los Alamos National Laboratory
    • LANL, NHMFL
    • National High Magnetic Field Laboratory (NHMFL), Los Alamos

  • Joel Ellis Moore

    • University of California, Berkeley
    • Physics, UC Berkeley
    • Physics, University of California, Berkeley

  • Jeffrey Neaton

    • Lawrence Berkeley National Laboratory
    • Physics, University of California at Berkeley
    • Physics, University of California, Berkeley
    • University of California, Berkeley; Lawrence Berkeley National Lab; Kavli Energy NanoScience Institute at Berkeley
    • Department of Physics, University of California Berkeley
    • University of California, Berkeley
    • Physics, University of California, Berkeley, and Materials Sciences Division, Lawrence Berkeley National Laboratory
    • Molecular Foundry, Lawrence Berkeley National Laboratory
    • University of California Berkeley

  • James Analytis

    • University of California, Berkeley
    • University of California at Berkeley
    • Physics, University of California, Berkeley