Original ResearchPublished 27 November 2025Optimizing ensemble NV − spin properties of fluorescent diamond microparticles by systematic low pressure high temperature annealingNicholas Nunn · Antonin Marek · Marco D. Torelli · Alex I. Smirnov · Olga A. ShenderovaFrontiers in Quantum Science and Technologydoi 10.3389/frqst.2025.1709220