Single tin-vacancy center in nanoscale diamond. - Fujiwara, Masanori; Ohori, Masanao; So, Frederick Tze Kit; Makino, Yuto; Morioka, Naoya; Ohki, Izuru; Igarashi, Ryuji; Nishikawa, Masahiro; Mizuochi, Norikazu (Discover Nano, 2025)