Three-dimensional localization spectroscopy of individual nuclear spins with sub-Angstrom resolution

J. Zopes, K. S. Cujia, K. Sasaki, J. M. Boss, K. M. Itoh and C. L. Degen ()
Additional contact information
J. Zopes: ETH Zurich
K. S. Cujia: ETH Zurich
K. Sasaki: ETH Zurich
J. M. Boss: ETH Zurich
K. M. Itoh: Keio University
C. L. Degen: ETH Zurich

Nature Communications, 2018, vol. 9, issue 1, 1-8

Abstract: Abstract Nuclear magnetic resonance (NMR) spectroscopy is a powerful method for analyzing the chemical composition and molecular structure of materials. At the nanometer scale, NMR has the prospect of mapping the atomic-scale structure of individual molecules, provided a method that can sensitively detect single nuclei and measure inter-atomic distances. Here, we report on precise localization spectroscopy experiments of individual 13C nuclear spins near the central electronic sensor spin of a nitrogen-vacancy (NV) center in a diamond chip. By detecting the nuclear free precession signals in rapidly switchable external magnetic fields, we retrieve the three-dimensional spatial coordinates of the nuclear spins with sub-Angstrom resolution and for distances beyond 10 Å. We further show that the Fermi contact contribution can be constrained by measuring the nuclear g-factor enhancement. The presented method will be useful for mapping atomic positions in single molecules, an ambitious yet important goal of nanoscale nuclear magnetic resonance spectroscopy.

Date: 2018
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DOI: 10.1038/s41467-018-07121-0

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