Studies of EPR parameters for Mn5+-doped Li3PO4 and Li3VO4 crystals
文献类型:期刊论文
作者 | W. C. Zheng ; X. X. Wu ; Y. J. Fan |
刊名 | Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy
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出版日期 | 2007 |
卷号 | 66期号:1页码:102-105 |
关键词 | electron paramagnetic resonance (EPR) crystal and ligand-field theory charge transfer mechanism Mn5+ Li3PO4 Li3VO4 atomic screening constants oxo coordination phase-transition scf functions laser action complexes pressure forsterite covalency ions |
ISSN号 | 1386-1425 |
中文摘要 | The EPR parameters (zero-field splitting D and g factors g(vertical bar vertical bar), g(perpendicular to)) of Mn5+-doped Li3PO4 and Li3VO4 crystals are calculated from the complete high-order perturbation formulas based on a molecular orbital scheme for a 3d(2) ion in tetragonal MX4 clusters. These formulas include not only the contribution coming from crystal-field excitations, but also that arising from charge-transfer excitations (which is discarded in crystal field theory). The calculated results are in reasonable agreement with the observed values. The contributions to EPR parameters coming from the charge-transfer excitations are comparable with those arising from the crystal-field excitations. It appears that for a high valence state 3d(n) ion in crystals, the reasonable explanations of EPR parameters should take the contributions due to both crystal-field and charge-transfer excitations into account. (c) 2006 Elsevier B.V. All rights reserved. |
原文出处 | |
公开日期 | 2012-04-13 |
源URL | [http://ir.imr.ac.cn/handle/321006/34093] ![]() |
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 | W. C. Zheng,X. X. Wu,Y. J. Fan. Studies of EPR parameters for Mn5+-doped Li3PO4 and Li3VO4 crystals[J]. Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,2007,66(1):102-105. |
APA | W. C. Zheng,X. X. Wu,&Y. J. Fan.(2007).Studies of EPR parameters for Mn5+-doped Li3PO4 and Li3VO4 crystals.Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,66(1),102-105. |
MLA | W. C. Zheng,et al."Studies of EPR parameters for Mn5+-doped Li3PO4 and Li3VO4 crystals".Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy 66.1(2007):102-105. |
入库方式: OAI收割
来源:金属研究所
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