Cargando…
Kilohertz electron paramagnetic resonance spectroscopy of single nitrogen centers at zero magnetic field
Electron paramagnetic resonance (EPR) spectroscopy is among the most important analytical tools in physics, chemistry, and biology. The emergence of nitrogen-vacancy (NV) centers in diamond, serving as an atomic-sized magnetometer, has promoted this technique to single-spin level, even under ambient...
Autores principales: | , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Association for the Advancement of Science
2020
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7385428/ https://www.ncbi.nlm.nih.gov/pubmed/32766444 http://dx.doi.org/10.1126/sciadv.aaz8244 |
_version_ | 1783563782687031296 |
---|---|
author | Kong, Fei Zhao, Pengju Yu, Pei Qin, Zhuoyang Huang, Zhehua Wang, Zhecheng Wang, Mengqi Shi, Fazhan Du, Jiangfeng |
author_facet | Kong, Fei Zhao, Pengju Yu, Pei Qin, Zhuoyang Huang, Zhehua Wang, Zhecheng Wang, Mengqi Shi, Fazhan Du, Jiangfeng |
author_sort | Kong, Fei |
collection | PubMed |
description | Electron paramagnetic resonance (EPR) spectroscopy is among the most important analytical tools in physics, chemistry, and biology. The emergence of nitrogen-vacancy (NV) centers in diamond, serving as an atomic-sized magnetometer, has promoted this technique to single-spin level, even under ambient conditions. Despite the enormous progress in spatial resolution, the current megahertz spectral resolution is still insufficient to resolve key heterogeneous molecular information. A major challenge is the short coherence times of the sample electron spins. Here, we address this challenge by using a magnetic noise–insensitive transition between states of different symmetry. We demonstrate a 27-fold narrower spectrum of single substitutional nitrogen (P1) centers in diamond with a linewidth of several kilohertz, and then some weak couplings can be resolved. Those results show both spatial and spectral advances of NV center–based EPR and provide a route toward analytical (EPR) spectroscopy at the single-molecule level. |
format | Online Article Text |
id | pubmed-7385428 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | American Association for the Advancement of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-73854282020-08-05 Kilohertz electron paramagnetic resonance spectroscopy of single nitrogen centers at zero magnetic field Kong, Fei Zhao, Pengju Yu, Pei Qin, Zhuoyang Huang, Zhehua Wang, Zhecheng Wang, Mengqi Shi, Fazhan Du, Jiangfeng Sci Adv Research Articles Electron paramagnetic resonance (EPR) spectroscopy is among the most important analytical tools in physics, chemistry, and biology. The emergence of nitrogen-vacancy (NV) centers in diamond, serving as an atomic-sized magnetometer, has promoted this technique to single-spin level, even under ambient conditions. Despite the enormous progress in spatial resolution, the current megahertz spectral resolution is still insufficient to resolve key heterogeneous molecular information. A major challenge is the short coherence times of the sample electron spins. Here, we address this challenge by using a magnetic noise–insensitive transition between states of different symmetry. We demonstrate a 27-fold narrower spectrum of single substitutional nitrogen (P1) centers in diamond with a linewidth of several kilohertz, and then some weak couplings can be resolved. Those results show both spatial and spectral advances of NV center–based EPR and provide a route toward analytical (EPR) spectroscopy at the single-molecule level. American Association for the Advancement of Science 2020-05-27 /pmc/articles/PMC7385428/ /pubmed/32766444 http://dx.doi.org/10.1126/sciadv.aaz8244 Text en Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). http://creativecommons.org/licenses/by-nc/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (http://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. |
spellingShingle | Research Articles Kong, Fei Zhao, Pengju Yu, Pei Qin, Zhuoyang Huang, Zhehua Wang, Zhecheng Wang, Mengqi Shi, Fazhan Du, Jiangfeng Kilohertz electron paramagnetic resonance spectroscopy of single nitrogen centers at zero magnetic field |
title | Kilohertz electron paramagnetic resonance spectroscopy of single nitrogen centers at zero magnetic field |
title_full | Kilohertz electron paramagnetic resonance spectroscopy of single nitrogen centers at zero magnetic field |
title_fullStr | Kilohertz electron paramagnetic resonance spectroscopy of single nitrogen centers at zero magnetic field |
title_full_unstemmed | Kilohertz electron paramagnetic resonance spectroscopy of single nitrogen centers at zero magnetic field |
title_short | Kilohertz electron paramagnetic resonance spectroscopy of single nitrogen centers at zero magnetic field |
title_sort | kilohertz electron paramagnetic resonance spectroscopy of single nitrogen centers at zero magnetic field |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7385428/ https://www.ncbi.nlm.nih.gov/pubmed/32766444 http://dx.doi.org/10.1126/sciadv.aaz8244 |
work_keys_str_mv | AT kongfei kilohertzelectronparamagneticresonancespectroscopyofsinglenitrogencentersatzeromagneticfield AT zhaopengju kilohertzelectronparamagneticresonancespectroscopyofsinglenitrogencentersatzeromagneticfield AT yupei kilohertzelectronparamagneticresonancespectroscopyofsinglenitrogencentersatzeromagneticfield AT qinzhuoyang kilohertzelectronparamagneticresonancespectroscopyofsinglenitrogencentersatzeromagneticfield AT huangzhehua kilohertzelectronparamagneticresonancespectroscopyofsinglenitrogencentersatzeromagneticfield AT wangzhecheng kilohertzelectronparamagneticresonancespectroscopyofsinglenitrogencentersatzeromagneticfield AT wangmengqi kilohertzelectronparamagneticresonancespectroscopyofsinglenitrogencentersatzeromagneticfield AT shifazhan kilohertzelectronparamagneticresonancespectroscopyofsinglenitrogencentersatzeromagneticfield AT dujiangfeng kilohertzelectronparamagneticresonancespectroscopyofsinglenitrogencentersatzeromagneticfield |