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J-coupling NMR spectroscopy with nitrogen vacancy centers at high fields

MetadataDetails
Publication Date2024-10-04
JournalPhysical Review Research
AuthorsP. Alsina-BolĆ­var, Ainitze Biteri-Uribarren, C. Munuera-Javaloy, J. Casanova
InstitutionsUniversity of the Basque Country
Citations4

A diamond-based sensor utilizing nitrogen-vacancy (NV) center ensembles permits the analysis of micron-sized samples through nuclear magnetic resonance (NMR) techniques at room temperature. Current efforts are directed towards extending the operating range of NV centers into high magnetic fields, driven by the potential for larger nuclear spin polarization of the target sample and the presence of enhanced chemical shifts. Especially interesting is the access to J-couplings as they carry information of chemical connectivity inside molecules. In this work, we present a protocol to access J-couplings in both homonuclear and heteronuclear cases with NV centers at high magnetic fields. Our protocol leads to a clear spectrum exclusively containing J-coupling features with high resolution. This resolution is limited primarily by the decoherence of the target sample, which is mitigated by the noise-filtering capacities of our method. Published by the American Physical Society 2024

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