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- W2391444966 abstract "According to the relationship between luminescent properties and local symmetry of Eu3+, to- gether with the site symmetry of symmetrically equivalent points in space group, it can be inferred that there are mainly two kinds of emission centers, which have the C4v or C3v site symmetry respectively, in fluorite:Eu3+ system. The Eu3+ ion requires charge compensation, because it enters the cubic site in a heterovalent substitu- tion for the Ca2+ ion. The charge-compensating defects, such as the predominant interstitial F, influence the local environment of the Eu3+ ions and, in particular, modify the site symmetry. The existence of F rou nd the Eu3+ ion reduces the Oh symmetry to C4v or C3v, which breaks the parity selection rules and promotes the lum- inescence of fluorite:Eu3+ samples." @default.
- W2391444966 created "2016-06-24" @default.
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- W2391444966 date "2001-01-01" @default.
- W2391444966 modified "2023-10-17" @default.
- W2391444966 title "Relationship between Luminescence and Crystal Structure of Eu~(3+) doped Fluorite" @default.
- W2391444966 hasPublicationYear "2001" @default.
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