Enigmatic color centers in microdiamonds with bright, stable, and narrow-band fluorescenceRemoveArthur Yu. Neliubov, Ivan Yu. Eremchev, Vladimir P. Drachev, Sergey S. Kosolobov, Evgeny A. Ekimov, Artem I. Arzhanov, Aleksandr O. Tarasevich, and Andrey V. NaumovPhys. Rev. B 107, L081406 (2023)