Defect interactions in ionic fluorite structures. I. Pair clusters in CaF2doped by YF3

作者: A R Allnatt , P S Yuen

DOI: 10.1088/0022-3719/8/14/002

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摘要: For pt.I see ibid., vol.8, p.2199 (1975). The mass action equilibrium between neutral defect pairs and 2:2:2 clusters was studied for Y3+-doped CaF2 using the theoretical value of binding energy. formation from anion interstitials substitutional Y3+ ions included. coulomb interactions among themselves with other species allowed in a second virial coefficient approximation an idealized model at concentrations up to 5-6%. It concluded that effects were sufficiently small higher statistical mechanics is likely be dominated by larger rather than slight ordering effect coulombic here.

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