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.
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Presenters
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Stephen Carr
Harvard University, Brown University, Department of Physics, Brown University, Physics, Brown University
Authors
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Stephen Carr
Harvard University, Brown University, Department of Physics, Brown University, Physics, Brown University
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Eric Barrett
Physics, Brown University
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Charles Snider
Department of Physics, Brown University, Physics, Brown University
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Dmitri Feldman
Department of Physics, Brown University, Brown University, Physics, Brown University
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Chandrasekhar Ramanathan
Dartmouth College, Physics and Astronomy, Dartmouth College
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Brad Bradley Marston
Brown University, Department of Physics, Brown University, Physics, Brown University
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Vesna Mitrovic
Brown University, Department of Physics, Brown University, Physics, Brown University