Proposed spin amplification for magnetic sensors employing crystal defects.
作者： Marcus Schaffry , Erik M. Gauger , John J. L. Morton , Simon C. Benjamin
DOI: 10.1103/PHYSREVLETT.107.207210
关键词: Physics 、 Vacancy defect 、 Magnetic Phenomena 、 Condensed matter physics 、 Magnetometer 、 Spin (physics) 、 Resonance 、 Magnetic field 、 Magnetic moment 、 Diamond
摘要: Recently there have been several theoretical and experimental studies of the prospects for magnetic field sensors based on crystal defects, especially nitrogen vacancy (NV) centers in diamond. Such systems could potentially be incorporated into an atomic force microscopy-like apparatus order to map properties a surface at single spin level. In this Letter we propose augmented sensor consisting NV center readout "amplifier" system that directly senses local field. Our calculations show hybrid structure has potential detect moments with sensitivity spatial resolution far beyond simple center, indeed may physical limit class.
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