Multidimensional spectroscopy of nuclear spin clusters in diamond

• URL: http://arxiv.org/abs/2403.02114v1
• Date: Mon, 4 Mar 2024 15:18:02 GMT
• Title: Multidimensional spectroscopy of nuclear spin clusters in diamond
• Authors: Konstantin Herb and Takuya F. Segawa and Laura A. V\"olker and John M. Abendroth and Erika Janitz and Tianqi Zhu and Christian L. Degen
• Abstract summary: We report techniques to improve localization and mapping of the testbed $13mathrmC$ nuclear spin environment. We use multidimensional spectroscopy, well-known from classical NMR, in combination with weak measurements of single-nuclear-spin precession.
• Score: 0.29320870573989144
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Optically active spin defects in solids offer promising platforms to investigate nuclear spin clusters with high sensitivity and atomic-site resolution. To leverage near-surface defects for molecular structure analysis in chemical and biological contexts using nuclear magnetic resonance (NMR), further advances in spectroscopic characterization of nuclear environments are essential. Here, we report Fourier spectroscopy techniques to improve localization and mapping of the testbed $^{13}\mathrm{C}$ nuclear spin environment of individual, shallow nitrogen-vacancy centers at room temperature. We use multidimensional spectroscopy, well-known from classical NMR, in combination with weak measurements of single-nuclear-spin precession. We demonstrate two examples of multidimensional NMR: (i) improved nuclear spin localization by separate encoding of the two hyperfine components along spectral dimensions and (ii) spectral editing of nuclear-spin pairs, including measurement of internuclear coupling constants. Our work adds important tools for the spectroscopic analysis of molecular structures by single-spin probes.

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