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Investigations of the local structure and the g factors for the tetragonal Er3+ center in KMgF3
Wu, SY; Dong, HN
通讯作者Wu, SY(wushaoyi@netease.com)
2005-09-01
发表期刊MATERIALS LETTERS
ISSN0167-577X
卷号59期号:22页码:2751-2754
摘要The local structure and the electron paramagnetic resonance (EPR) g factors for the tetragonal Er3+ center in KMgF3 are theoretically studied by using the perturbation formulas of the g factors for a 4f(11) ion in tetragonal symmetry. In these formulas, the contributions to the g factors from the second-order perturbation terms and the admixtures of various states are taken into account. Based on the studies, the impurity Er3+ is expected to occupy the octahedral Mg2+ site, associated with an oxygen ion substituting for one of the nearest F- (i.e., O-F) in the C-4 axis, due to charge compensation. Because of the electrostatic attraction of the compensator O-F, the Er3+ ion is found to take an axial displacement Delta Z (approximate to 0.07 angstrom) towards the compensator along the C-4 axis. The calculated g factors based on the above displacement Delta Z show reasonable agreement with the observed values. (C) 2005 Elsevier B.V. All rights reserved.
关键词defects electron paramagnetic resonance (EPR) crystal fields Er3+ KMgF3
DOI10.1016/j.matlet.2005.03.052
收录类别SCI
语种英语
WOS研究方向Materials Science ; Physics
WOS类目Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号WOS:000230683900007
出版者ELSEVIER SCIENCE BV
引用统计
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/83212
通讯作者Wu, SY
作者单位1.Univ Elect Sci & Technol China, Dept Appl Phys, Chengdu 610054, Peoples R China
2.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China
3.Chongqing Univ Posts & Telecommun, Coll Elect Engn, Chongqing 400065, Peoples R China
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Wu, SY,Dong, HN. Investigations of the local structure and the g factors for the tetragonal Er3+ center in KMgF3[J]. MATERIALS LETTERS,2005,59(22):2751-2754.
APA Wu, SY,&Dong, HN.(2005).Investigations of the local structure and the g factors for the tetragonal Er3+ center in KMgF3.MATERIALS LETTERS,59(22),2751-2754.
MLA Wu, SY,et al."Investigations of the local structure and the g factors for the tetragonal Er3+ center in KMgF3".MATERIALS LETTERS 59.22(2005):2751-2754.
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