THE EFFECT OF PRESSURE ON COLOR CENTERS IN ALKALI HALIDE CRYSTALS

摘要: Abstract The absorption spectra of both X-irradiated and additively colored alkali halides have been studied under pressure up to 50,000 atm. These experiments were conducted at room temperature and, with a few exceptions, only those bands occurring in or near the visible region spectrum studied. Frequency shifts bleaching effects, latter induced by radiation plastic deformation, observed. An apparently new band, intimately related F center appearing expense has Several run 1 It shown that atmospheric oxidation is one mechanisms responsible for plastically deformed crystals.