2011/04/19 by Marcus Schaffry, Erik M. Gauger, John J. L. Morton +1 · 2 citations
Materials Science · Physics and Astronomy · #Atomic and Subatomic Physics Research #Computer science #Condensed matter physics #Crystal (programming language) #Diamond and Carbon-based Materials Research #Magnetic properties of thin films #Materials science #Physics #Spin (aerodynamics) #cond-mat.mtrl-sci #quant-ph
paper · pdf · doi:10.1103/physrevlett.107.207210
published as Physical Review Letters, 107(20):207210, 2011
arxiv created 2011/04/19 · openalex publication_date 2011/11/10 · arxiv updated 2011/11/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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 in order to map the magnetic properties of a surface at the single spin level. In this Letter we propose an augmented sensor consisting of an NV center for readout and an "amplifier" spin system that directly senses the local magnetic field. Our calculations show that this hybrid structure has the potential to detect magnetic moments with a sensitivity and spatial resolution far beyond that of a simple NV center, and indeed this may be the physical limit for sensors of this class.