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Studies of the g factor for Cr4+ ion in Bi4Ge3O12 crystal from crystal-field and charge-transfer mechanisms
Wu, XX; Zheng, WC; Tang, S
通讯作者Zheng, WC()
2004-07-01
发表期刊ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES
ISSN0932-0784
卷号59期号:7-8页码:467-470
摘要The complete third-order perturbation formulas of the g factors g(\\) and g(perpendicular to) for 3d(2) ions in tetragonal MX4 clusters have been obtained by a cluster approach. In these formulas, in addition to contributions to the g factors from the crystal-field mechanism in the crystal-field theory, the contributions from the charge-transfer mechanism are included. From these formulas, the g factors g(\\) and g(perpendicular to) for a Cr4+ ion in a Bi4Ge3O12 crystal are calculated. The results agree with the observed values. The calculated Deltag(i)(i = \\ or perpendicular to) value due to the charge-transfer is opposite in sign and about 20% greater than that due to the crystal-field mechanism. So, for the 3d(n) ions having a high valence in crystals, a reasonable explanation of the g factors should take both the crystal-field and charge-transfer mechanisms into account.
关键词electron paramagnetic resonance crystal- and ligand- field theory charge-transfer mechanism Cr4+ Bi4Ge3O12
收录类别SCI
语种英语
WOS研究方向Chemistry ; Physics
WOS类目Chemistry, Physical ; Physics, Multidisciplinary
WOS记录号WOS:000223471600009
出版者VERLAG Z NATURFORSCH
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文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/80795
通讯作者Zheng, WC
作者单位1.Sichuan Univ, Dept Mat Sci, Chengdu 610064, Peoples R China
2.Civil Aviat Flying Inst China, Dept Phys, Gunghan 618307, Peoples R China
3.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China
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Wu, XX,Zheng, WC,Tang, S. Studies of the g factor for Cr4+ ion in Bi4Ge3O12 crystal from crystal-field and charge-transfer mechanisms[J]. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES,2004,59(7-8):467-470.
APA Wu, XX,Zheng, WC,&Tang, S.(2004).Studies of the g factor for Cr4+ ion in Bi4Ge3O12 crystal from crystal-field and charge-transfer mechanisms.ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES,59(7-8),467-470.
MLA Wu, XX,et al."Studies of the g factor for Cr4+ ion in Bi4Ge3O12 crystal from crystal-field and charge-transfer mechanisms".ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES 59.7-8(2004):467-470.
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