Two-dimensional Nuclear Magnetic Resonance (NMR) is essential in molecular structure determination. The Nitrogen-Vacancy (NV) center in diamond has been proposed and developed as an outstanding quantum sensor to realize NMR in nanoscale. In this work, we develop a scheme for two-dimensional nanoscale NMR spectroscopy based on quantum controls on an NV center. We carry out a proof of principle experiment on a target of two coupled 13C nuclear spins in diamond. A COSY-like sequences is used to acquire the data on time domain, which is then converted to frequency domain with the fast Fourier transform (FFT). With the two-dimensional NMR spectrum, the structure and location of the set of nuclear spin are resolved. This work marks a fundamental step towards resolving the structure of a single molecule.
@article{arxiv.1902.05676,
title = {Structural analysis of nuclear spin clusters via two-dimensional nanoscale nuclear magnetic resonance spectroscopy},
author = {Zhiping Yang and Xi Kong and Zhijie Li and Kai Yang and Pei Yu and Pengfei Wang and Ya Wang and Xi Qin and Xing Rong and Chang-Kui Duan and Fazhan Shi and Jiangfeng Du},
journal= {arXiv preprint arXiv:1902.05676},
year = {2019}
}