Gyromagnetic factor of Cr4+ ions in forsterite
Gyromagnetic factor of Cr4+ ions in forsterite
he average value of g factor (i.e., ) of Cr4+ ions in forsterite (Mg2SiO4) is calculated with the cubic symmetry approximation from the complete high-order perturbation formula of g factor for 3d2 ion in cubic tetrahedral cluster. In the formula, the contribution to g factor from the charge-transfer mechanism (which is neglected in the crystal-field theory) is considered in addition to that from the widely used crystal-field mechanism. From the calculations, the reasonable observed value of is suggested (note: the experimental values of by various authors are scattered) and the important contribution of charge-transfer mechanism to g factor can be found.
he average value of g factor (i.e., ) of Cr4+ ions in forsterite (Mg2SiO4) is calculated with the cubic symmetry approximation from the complete high-order perturbation formula of g factor for 3d2 ion in cubic tetrahedral cluster. In the formula, the contribution to g factor from the charge-transfer mechanism (which is neglected in the crystal-field theory) is considered in addition to that from the widely used crystal-field mechanism. From the calculations, the reasonable observed value of is suggested (note: the experimental values of by various authors are scattered) and the important contribution of charge-transfer mechanism to g factor can be found.
范应娟、吴晓轩、郑文琛
物理学晶体学
Electron paramagnetic resonance Charge-transfer mechanism Crystal- and ligand-field theory Cr4+ Mg2SiO4
Electron paramagnetic resonance Charge-transfer mechanism Crystal- and ligand-field theory Cr4+ Mg2SiO4
范应娟,吴晓轩,郑文琛.Gyromagnetic factor of Cr4+ ions in forsterite[EB/OL].(2004-05-31)[2025-08-02].http://www.paper.edu.cn/releasepaper/content/200405-103.点此复制
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