Spin-lattice coupling coefficient G(44) of KMgF3 : Mn2+ calculated from two cases
文献类型：期刊论文
| 作者 | S. Y. Wu ; W. C. Zheng |
| 刊名 | Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences
 |
| 出版日期 | 2001 |
| 卷号 | 56期号:3-4页码:253-256 |
| 关键词 | spin-lattice coupling coefficient crystal-field theory electron paramagnetic resonance Mn2+ (EPR) KMgF3 superposition model s-6-state ions spectrum symmetry crystal centers |
| ISSN号 | 0932-0784 |
| 中文摘要 | The high (fourth) order perturbation formulas based on the dominant spin-orbit coupling mechanism for the zero-field splittings D-tri of a S-6-state ion in trigonal symmetry and E-rho in rhombic symmetry are derived from the strong field scheme. Two analytic expressions of the spin-lattice coupling coefficient G(44) Obtained from the formulas of D-tri and E-rho are established by using a simple and uniform method. Based on the two expressions, the coefficients G(44) for KMgF3:Mn2+ are calculated in two cases. The results show that the lowest (third) order perturbation formulas of D-tri((3)) and E-rho((3)) are too simple and too approximate to give reasonable and consistent values of G44, whereas when the fourth-order perturbation terms D-tri((4)) and E-rho((4)) are considered, the calculated values of G(44) (= G(44)((3)) + G(44)((4))) in both cases are not only close to each other, but also in agreement with the observed value. So, the fourth-order perturbation terms cannot be neglected. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/36844]  |
| 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 | S. Y. Wu,W. C. Zheng. Spin-lattice coupling coefficient G(44) of KMgF3 : Mn2+ calculated from two cases[J]. Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences,2001,56(3-4):253-256. |
| APA | S. Y. Wu,&W. C. Zheng.(2001).Spin-lattice coupling coefficient G(44) of KMgF3 : Mn2+ calculated from two cases.Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences,56(3-4),253-256. |
| MLA | S. Y. Wu,et al."Spin-lattice coupling coefficient G(44) of KMgF3 : Mn2+ calculated from two cases".Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences 56.3-4(2001):253-256. |
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来源：金属研究所
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