Study on the contribution of the charge transfer excited states in Ba2MgGe2O7 : Cr4+ crystal to g factor

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	Study on the contribution of the charge transfer excited states in Ba2MgGe2O7 : Cr4+ crystal to g factor
	X. X. Wu; W. C. Zheng
	2007
发表期刊	Spectroscopy and Spectral Analysis
ISSN	1000-0593
卷号	27 期号:1 页码:41132
摘要	A complete high-order perturbation formula of g factor for cubic 3d(2) MX4 clusters was established. In the formula, not only the contributions of the crystal-field (CF) mechanism (which is related to the CF excitations) to the g-shift Delta g(=g-g(s)), but also the contributions of the charge-transfer (CT) mechanism (related to CT excitations) were considered. Using the formula, the g factor of Ba2MgGe2O7 : Cr4+ was calculated. The result was in agreement with the observed value. It was found that the calculated Delta g(CT) due to the charge-transfer mechanism is opposite in sign and about 38% in magnitude, compared with the calculated Delta g(CF) due to the crystal-field mechanism So, for a high valence 3d(n) ion in crystals, the reasonable explanation of g factor should take into account the contributions of both crystal-field and charge-transfer mechanisms.
部门归属	civil aviat flying inst china, dept phys, guanghan 618307, peoples r china. sichuan univ, dept mat sci, chengdu 610064, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;wu, xx (reprint author), civil aviat flying inst china, dept phys, guanghan 618307, peoples r china
关键词	Electron Paramagnetic Resonance g Factor Charge Transfer Mechanism Crystal-and Ligand-field Theory Ba2mgge2o7 Crystal Chromium-doped Forsterite Atomic Screening Constants Scf Functions Laser Spectroscopy Transition Complexes Spectrum Cr4++
URL	查看原文
WOS记录号	WOS:000244077200003
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33926
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. X. Wu,W. C. Zheng. Study on the contribution of the charge transfer excited states in Ba2MgGe2O7 : Cr4+ crystal to g factor[J]. Spectroscopy and Spectral Analysis,2007,27(1):41132.
APA	X. X. Wu,&W. C. Zheng.(2007).Study on the contribution of the charge transfer excited states in Ba2MgGe2O7 : Cr4+ crystal to g factor.Spectroscopy and Spectral Analysis,27(1),41132.
MLA	X. X. Wu,et al."Study on the contribution of the charge transfer excited states in Ba2MgGe2O7 : Cr4+ crystal to g factor".Spectroscopy and Spectral Analysis 27.1(2007):41132.