| Study on the contribution of the charge transfer excited states in Ba2MgGe2O7 : Cr4+ crystal to g factor | |
| X. X. Wu; W. C. Zheng | |
| 2007 | |
| Source Publication | Spectroscopy and Spectral Analysis
 |
| ISSN | 1000-0593 |
| Volume | 27Issue:1Pages:41132 |
| Abstract | 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. |
| description.department | 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 |
| Keyword | 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 ID | WOS:000244077200003 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/33926 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation 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. |
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