Study of exchange interaction of Ni2+ pairs in MgO : Ni2+, KMgF3 : Ni2+ and KNiF3 crystals
文献类型：期刊论文
| 作者 | X. Y. Kuang ; K. W. Zhou |
| 刊名 | Physica B-Condensed Matter
 |
| 出版日期 | 2001 |
| 卷号 | 305期号:2页码:169-174 |
| 关键词 | exchange interactions Ni2+ pairs MgO : Ni2+ KMgF3 Ni2+ KNiF3 complexes |
| ISSN号 | 0921-4526 |
| 中文摘要 | The exchange interactions of the Ni2+ pairs in MgO : Ni2+ KMgF3 : Ni2+ and KNiF3 systems have been studied based on the Girerd-Journaux-Kahn (GJK) model and the Heitler-London (HL) model, respectively, and by use of a double Slater-type radial wave function and an effective potential, which are constructed in terms of the spectral calculation. For the Ni-Ni distance R in the range 3.2 Angstrom < R < 4.8 Angstrom, the values of the exchange interaction parameter J calculated based on the GJK model are greater by a factor 2 than those based on the HL model. The calculated results give a reasonable explanation for the magnetic structure of the three systems and show that:(i) the kinetic exchange interaction is notably important, (ii) the antiferromagnetic effect is governed by both the direct exchange and the superexchange mechanisms, and (iii) the GJK model is suitable for describing the Ni-Ni exchange interactions in the three systems. (C) 2001 Elsevier Science B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/36689]  |
| 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. Y. Kuang,K. W. Zhou. Study of exchange interaction of Ni2+ pairs in MgO : Ni2+, KMgF3 : Ni2+ and KNiF3 crystals[J]. Physica B-Condensed Matter,2001,305(2):169-174. |
| APA | X. Y. Kuang,&K. W. Zhou.(2001).Study of exchange interaction of Ni2+ pairs in MgO : Ni2+, KMgF3 : Ni2+ and KNiF3 crystals.Physica B-Condensed Matter,305(2),169-174. |
| MLA | X. Y. Kuang,et al."Study of exchange interaction of Ni2+ pairs in MgO : Ni2+, KMgF3 : Ni2+ and KNiF3 crystals".Physica B-Condensed Matter 305.2(2001):169-174. |
入库方式： OAI收割
来源：金属研究所
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