Signatures of electronic correlations and spin-susceptibility anisotropy in nuclear magnetic resonance

Abstract

We present a methodology for probing the details of electronic susceptibility through minimally-invasive nuclear magnetic resonance techniques. Specifically, we classify electron-mediated long-range interactions in an ensemble of nuclear spins by revealing their effect on simple spin echo experiments. We find that pulse strength and applied field orientation dependence of these spin echo measurements resolves the spatial extent and anisotropy of electronic spin susceptibility. This work provides an alternate explanation to NMR results in superconducting and magnetically-ordered systems. The methodology has direct applications for sensing and characterizing emergent electronic phases.

5 pages, 4 figures (main text)

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• Dynamic nuclear polarization as kinetically constrained diffusion
• Effectiveness of classical spin simulations for describing NMR relaxation of quantum spins
• Comment on ``Texture in the Superconducting Order Parameter of CeCoIn${}_5$ Revealed by Nuclear Magnetic Resonance''
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Cited by in corpus (2)

• PULSEE: A software for the quantum simulation of an extensive set of magnetic resonance observables
• Dynamic Simulations of Strongly Coupled Spin Ensembles for Inferring Nature of Electronic Correlations from Nuclear Magnetic Resonance