X-ray induced electron defects in photochromic Ba3MgSi2O8: Eu3+ and isostructural K3Na(SO4)2
نویسندگان
چکیده
Eu3+-doped Ba3MgSi2O8 has attracted much attention for the photochromic behavior. It been suggested that this behavior originates from photoinduced electron defects. In study, defects induced in silicate were discussed spectroscopic similarity between Ba3MgSi2O8: Eu3+ and isostructural K3Na(SO4)2. ESR spectra measured a single-crystalline K3Na(SO4)2, orientation of which was determined by Raman spectroscopy, revealed CuKα radiation anisotropic SO4- radicals within structure. Similar character observed CuKα-irradiated it indicates with similar geometry formed irradiation. From g-value, assigned to SiO4-related radicals.
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ژورنال
عنوان ژورنال: Journal of Alloys and Compounds
سال: 2021
ISSN: ['0925-8388', '1873-4669']
DOI: https://doi.org/10.1016/j.jallcom.2021.160111