| On the EPR parameters of divalent cobalt in ZnX (X = S, Se, Te) and CdTe |
| S. Y. Wu; H. N. Dong
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| 2004
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| 发表期刊 | Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences
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| ISSN | 0932-0784
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| 卷号 | 59期号:12页码:938-942 |
| 摘要 | The electron paramagnetic resonance (EPR) parameters g and the hyperfine structure constants A of CO2+ in ZnX (X = S, Se, Te) and CdTe are studied, using the perturbation formulas of the EPR parameters for a 3d(7) ion in tetrahedra based on two mechanism models. In these formulas, both the contributions from the conventional crystal-field (CF) mechanism and those from the charge-transfer (CT) mechanism are taken into account. According to the investigations, the sign of the g-shift DeltagCT from the CT mechanism is the same as DeltagCF from the CF mechanism, whereas the contributions to the A value from the CF and CT mechanisms have opposite signs. Particularly, the contributions to the EPR parameters from the CT mechanism increase rapidly with increase of the spin-orbit coupling coefficient of the ligand and the covalency effect of the systems, i.e. S2- < Se2- < Te2-. |
| 部门归属 | univ elect sci & technol china, dept appl phys, chengdu 610054, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china. chongqing univ, coll elect engn, chongqing 400065, peoples r china.;wu, sy (reprint author), univ elect sci & technol china, dept appl phys, chengdu 610054, peoples r china;wushaoyi@netease.com
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| 关键词 | Crystal-fields And Spin Hamiltonians
Znx (x = s
Epr
Se
Co2++
Te)
Cdte
Atomic Screening Constants
Scf Functions
Field Theory
Cr2++ Ion
Spectra
Znse
Complexes
Crystal
Liyf4
Znte
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| URL | 查看原文
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| WOS记录号 | WOS:000227184700008
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/35617
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| 专题 | 中国科学院金属研究所
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推荐引用方式
GB/T 7714 |
S. Y. Wu,H. N. Dong. On the EPR parameters of divalent cobalt in ZnX (X = S, Se, Te) and CdTe[J]. Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences,2004,59(12):938-942.
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| APA |
S. Y. Wu,&H. N. Dong.(2004).On the EPR parameters of divalent cobalt in ZnX (X = S, Se, Te) and CdTe.Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences,59(12),938-942.
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| MLA |
S. Y. Wu,et al."On the EPR parameters of divalent cobalt in ZnX (X = S, Se, Te) and CdTe".Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences 59.12(2004):938-942.
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