Energy Spectrum of Mn^<++> Ion in Calcium Fluorophosphate II

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概要

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• The absorption spectrum of the manganese impurity ion in calcium fiuorophosphate is calculated by using crystalline field approximation, taking into account the effect of polarization of oxygen ions near the manganese ion, and taking the ionicity in the bond between oxygen and phosphorus in phosphate ions as a parameter. Among the coefficients in the expression of crystalline field potential at the position of Mn^<++> ion, c_2^0 can be compared with the coefficient D in the spin Hamiltonian, which appears in the theory of Watanabe. From a comparison of the calculated c_2^0 with that deduced from ESR experiment, it is concluded that the ionicity is about 40%. Although the energies of the absorption band of Mn^<++> ion in calcium fluorophosphate phosphor are not observed, they can be estimated from the consideration of the mechanism of luminescence in this crystal. Comparison of these estimated energies with the calculated energies shows that the ionicity in phosphate ion is about 35% which is consistent with that obtained from the comparison of calculated c_2^0 with that deduced from ESR experiment.

• 社団法人日本物理学会の論文
• 1963-01-05

著者

• Narita Koziro

  Hitachi Central Research Laboratory

• Narita K.

  Hitachi Central Research Laboratory

関連論文

• A New Phase Appearing in Metal-Semiconductor Transition in VO_2
• Ground State Energies of Donors in Ge and Si
• Energy Spectrum of Mn^ Ion in Calcium Fluorophosphate II
• Energy Spectrum of Mn++ Ion in Calcium Fluorophosphate I

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