If an ionic crystal is irradiated, some atoms may lose an electron.
If an ionic crystal is irradiated, some atoms may lose an electron. The resulting ion escapes from the crystal, but the electron migrates to an Schottky defect, where it is held electrostatically. What name, derived from the German for "color center  ", is given to these defects which impart  color to ionic crystals?
If an ionic crystal is irradiated, some atoms may lose an electron.
F-center (from "Farben-Zentrum")