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arXiv · 1902.05676

Structural analysis of nuclear spin clusters via two-dimensional nanoscale nuclear magnetic resonance spectroscopy

Zhiping Yang·Xi Kong·Zhijie Li·Kai Yang·Pei Yu·Pengfei Wang·Ya Wang·Xi Qin·Xing Rong·Chang-Kui Duan·Fazhan Shi·Jiangfeng Du
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Abstract

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 $^{13}$C 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.

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Zhiping Yang, Xi Kong, Zhijie Li, Kai Yang, Pei Yu, Pengfei Wang, Ya Wang, Xi Qin, Xing Rong, Chang-Kui Duan, Fazhan Shi, Jiangfeng Du. 2019-02-15. Structural analysis of nuclear spin clusters via two-dimensional nanoscale nuclear magnetic resonance spectroscopy. https://arxiv.org/abs/1902.05676

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