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Gyromagnetic factor of Cr4+ ions in forsterite
Zheng Wen-Chen 1 #,Wu Xiao-Xuan 2,Fan Ying-Juan 3
1.Department of Material Science, Sichuan University, Chengdu, P. R. .China
2.Department of Physics, Civil Aviation Flying Institute of China, Guanghan, P. R. China
3.Department of Material Science- Sichuan University
*Correspondence author
#Submitted by
Subject:
Funding: none
Opened online:31 May 2004
Accepted by: none
Citation: Zheng Wen-Chen,Wu Xiao-Xuan,Fan Ying-Juan.Gyromagnetic factor of Cr4+ ions in forsterite[OL]. [31 May 2004] http://en.paper.edu.cn/en_releasepaper/content/741
 
 
The 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.
Keywords:Electron paramagnetic resonance, Charge-transfer mechanism, Crystal- and ligand-field theory, Cr4+, Mg2SiO4
 
 
 

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