Study on the contribution of the charge transfer excited states in Ba2MgGe2O7 : Cr4+ crystal to g factor
文献类型：期刊论文
| 作者 | X. X. Wu ; W. C. Zheng |
| 刊名 | Spectroscopy and Spectral Analysis
 |
| 出版日期 | 2007 |
| 卷号 | 27期号:1页码:41132 |
| 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+ |
| ISSN号 | 1000-0593 |
| 中文摘要 | 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. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/33926]  |
| 专题 | 金属研究所_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. |
入库方式： OAI收割
来源：金属研究所
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