globalchange  > 气候变化与战略
DOI: 10.1016/j.scib.2020.08.001
论文题名:
A hybrid magnetometer towards femtotesla sensitivity under ambient conditions
作者: Xie Y.; Yu H.; Zhu Y.; Qin X.; Rong X.; Duan C.-K.; Du J.
刊名: Science Bulletin
ISSN: 20959273
出版年: 2021
卷: 66, 期:2
起始页码: 127
结束页码: 132
语种: 英语
中文关键词: Diamond magnetometer ; Flux concentrator ; NV centers ; Quantum sensing
英文关键词: Biomagnetism ; Brain mapping ; Electrophysiology ; Geomagnetism ; Magnetic fields ; Magnetoencephalography ; Quantum interference devices ; SQUIDs ; Ambient conditions ; Cryogenic temperatures ; Cutting edges ; Fabrication Technologies ; Hall magnetometers ; Hybrid magnetometers ; Nitrogen-vacancy center ; Magnetometers
英文摘要: Detecting magnetic field is of great importance for many applications, such as magnetoencephalography and underground prospecting. There have been many magnetometers being widely used since the age of Hall magnetometer. One of the magnetometers, the superconducting quantum interference device, is capable of measuring femtotesla magnetic fields at cryogenic temperature. However, a solid-state magnetometer with femtotesla sensitivity under ambient conditions remains elusive. Here we present a hybrid magnetometer based on the ensemble nitrogen-vacancy centers in diamond with the sensitivity of (195±60)fT/Hz1/2 under ambient conditions, which can be further advanced to 11fT/Hz1/2 at 100 Hz with cutting-edge fabrication technologies. Our method will find potential applications in biomagnetism and geomagnetism. © 2020 Science China Press
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/170458
Appears in Collections:气候变化与战略

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作者单位: CAS Key Laboratory of Microscale Magnetic Resonance and Department of Modern Physics, University of Science and Technology of China, Hefei, 230026, China; Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China; Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, 230026, China

Recommended Citation:
Xie Y.,Yu H.,Zhu Y.,et al. A hybrid magnetometer towards femtotesla sensitivity under ambient conditions[J]. Science Bulletin,2021-01-01,66(2)
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