Investigations of the optical spectra and local structure for nickel(II) ions in XF2 (X = Mg,Zn) single crystals |
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| Authors: | W.-L. Feng X.-J. Quan N. Hu |
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| Affiliation: | 1. Department of Applied Physics , Chongqing Institute of Technology , Chongqing 400050, P.R. China wenlinfeng@126.com;3. Department of Applied Physics , Chongqing Institute of Technology , Chongqing 400050, P.R. China |
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| Abstract: | A complete diagonalization energy matrix method (CDM) is proposed for 3d 8 ions in orthorhombic site (D 2 h ) symmetry. As an application, the optical spectra of XF2 : Ni2+ (X = Mg, Zn) is well explained on the basis of both the CDM and the semi-self-consistent field d-orbital (semi-SCF d-orbital) theory. In addition, by establishing the relationship between the optical spectra and local structure, it has been possible to calculate the crystal structure parameters for XF2:Ni2+ from optical measurements on Ni2+ ions. The theoretical results are in good agreement with experimental findings. |
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| Keywords: | in situ TEM in situ laser melting rapid solidification aluminum solidification TEM microstructural analysis texture analysis |
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