Spin-orbit coupled heavy metals as a probe of frustrated magnetic systems

ORAL

Abstract

In strongly frustrated magnetic materials, a magnetically ordered state may be suppressed by quantum fluctuations. Such a situation can lead to a quantum spin liquid ground state, where quantum fluctuations a strongly enhanced and lead to long-range entanglement. We realize several experiments to detect signatures of these fluctuations by coupling a magnetically frustrated insulator to an adjacent heavy metal layer. By measuring the evolution of the heavy metal resistivity with temperature and magnetic field, the behavior of these fluctuations can be mapped out. We comment on how our measurements may have relevance to fractional excitations in such systems.

*This work was supported by the National Science Foundation under Grant No. 1607753 and DGE-1106400, The Gordon and Betty Moore foundations EPiQS Initiative - Grant GBMF9067. V.N. acknowledges support from the National Science Foundation Graduate Research Fellowship Grant No. DGE 1752814.

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Presenters

  • Vikram Nagarajan

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

Authors

  • Vikram Nagarajan

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

  • Ella Lachman

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

  • Hossein Taghinejad

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

  • James Analytis

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