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Investigation of Truc Ni~(2+)-Halide Distances in Alkali Halide Lattices

Xuanrong MA(Department of Physics , Ningxia University , Yinchuan , 750021 , China)Maolu DU(Institute of Solid State Physics , Sichuan Normal University , Chengdu , 610066 , China)(To whom correspondence should be addressed)

材料科学技术(英文)

Using the μKα model of Ni2+-6X- cluster, the true distances between impurity Ni2+ cation and halide anion in alkali halide lattices are estimated from the optical spectra data. The results suggest that the true impurity cation- ligand anion distances are close to the sum of ionic radii of the impurity cation and ligand anion but not the cation - anion distance of the perfect lattices in the case of that the ionic radius of host cation is more larger than that of impurity cation

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