Device engineering for photocurrent detected magnetic resonance and scanning probes using solid-state spin defects
Year: 2026
Type: article
Abstract: Solid-state spin defects provide a versatile platform for quantum sensing with nanoscale spatial resolution and room-temperature operation. Spin defects in diamond have enabled mature scanning-probe devices, while related defects in silicon carbide and hexagonal boron nitride are being actively explored for scalable sensing platforms. However, the sensitivity of practical and scanning-probe devices remains below that of optimized bulk systems. Although optical fluorescence detection is widely used, practical performance is often constrained by limitations in signal acquisition and readout efficiency, motivating continued efforts to improve readout technologies. This review surveys material platforms and optical and photoelectrical readout technologies for solid-state spin defects. We compare fluorescence- and photoelectric-based detection schemes in terms of readout fidelity, sensitivity, and scalability, and discuss how materials properties and carrier transport influence practical performance. These perspectives provide guidelines for improving readout efficiency and advancing high-sensitivity quantum sensors and scanning probes.
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,134
Funders: Mazda Foundation, Asahi Glass Foundation, Ministry of Education, Culture, Sports, Science and Technology, Murata Science Foundation, Japan Society for the Promotion of Science, Center for Spintronics Research Network, Tohoku University, Core Research for Evolutional Science and Technology, Precursory Research for Embryonic Science and Technology
Awards: G1022387596, G1719780984, Exploring photo-orbitronics, G208252650, G3344218724, Development of Electrical Detection Method for Nuclear Electric Resonance of Single Nuclear Spin, G4509749694, G4624654923, 単一点欠陥の光電流計測によるSiC中の近赤外発光中心の物性解明と高感度スピン検出, G5164354190, G6054978281, 走査NV-ESR, NMRプローブ顕微鏡の開発, Geometrical control of solid-state spin systems and development to topological quantum simulations, Elucidation of spin-optical-charge dynamics of defect spin in silicon carbide toward efficient electrical spin readout, Nanoscale characterization of high-pressure superconductors using diamond quantum sensing, Innovative metal/semiconductor-hybrid spintronic devices for nano-scale memory
OpenAlex ID: W7203636225