Enhancement of nuclear spin-spin interactions by collective electronic modes

ORAL

Abstract

Nuclear magnetic resonance (NMR) has been used to great success as an indirect probe of electronic behavior, as changes in the electronic phase can shift or broaden resonance signals. We propose how electronic phases can also introduce feedback loops to nuclear spin behavior. Under strong spin-spin interactions, nuclear ensembles will exhibit nonlinear dynamics and give complicated responses to standard pulse protocols. Enhancement mechanisms of the double-exchange interaction between electrons and nuclei due to the presence of many-body collective modes will be explored, along with implications for observing these non-classical electronic states in NMR experiments.

*This work was supported by the National Science Foundation under grant No. OIA-1921199.

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Presenters

  • Stephen Carr

    • Harvard University
    • Brown University
    • Department of Physics, Brown University
    • Physics, Brown University

Authors

  • Stephen Carr

    • Harvard University
    • Brown University
    • Department of Physics, Brown University
    • Physics, Brown University

  • Eric Barrett

    • Physics, Brown University

  • Charles Snider

    • Department of Physics, Brown University
    • Physics, Brown University

  • Dmitri Feldman

    • Department of Physics, Brown University
    • Brown University
    • Physics, Brown University

  • Chandrasekhar Ramanathan

    • Dartmouth College
    • Physics and Astronomy, Dartmouth College

  • Brad Bradley Marston

    • Brown University
    • Department of Physics, Brown University
    • Physics, Brown University

  • Vesna Mitrovic

    • Brown University
    • Department of Physics, Brown University
    • Physics, Brown University