Zero-Field Magnetometry Based on Nitrogen-Vacancy Ensembles in Diamond

  title={Zero-Field Magnetometry Based on Nitrogen-Vacancy Ensembles in Diamond},
  author={Huijie Zheng and Jingyan Xu and Geoffrey Z. Iwata and Till Lenz and Julia Michl and Boris V. Yavkin and Kazuo Nakamura and Hitoshi Sumiya and Takeshi Ohshima and Junichi Isoya and J. Wrachtrup and Arne Wickenbrock and Dmitry Budker},
  journal={Physical Review Applied},
Ensembles of nitrogen-vacancy (NV) centers in diamonds are widely utilized for magnetometry, magnetic-field imaging and magnetic-resonance detection. They have not been used for magnetometry at zero ambient field because Zeeman sublevels lose first-order sensitivity to magnetic fields as they are mixed due to crystal strain or electric fields. In this work, we realize a zero-field (ZF) magnetometer using polarization-selective microwave excitation in a 12C-enriched HPHT crystal sample. We… Expand

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