Spin-Hamiltonian parameters and defect structure for Co(4+) in Al(2)O(3):Mg(2+) crystal

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	Spin-Hamiltonian parameters and defect structure for Co(4+) in Al(2)O(3):Mg(2+) crystal
	G. M. Jia; L. He; W. C. Zheng
	2008
发表期刊	Physica B-Condensed Matter
ISSN	0921-4526
卷号	403 期号:21-22 页码:3950-3952
摘要	The spin-Hamiltonian parameters (g factors g(parallel to), g(perpendicular to) and hyperfine structure constants A(parallel to) and A(perpendicular to)) for Co(4+) ion in Al(2)O(3):Mg(2+) crystals are calculated from the resonance theory related to the low-spin (2)T(2) term in trigonal symmetry. The calculated values are in reasonable agreement with the observed values. From the calculation, the defect structure of Co(4+) Center in Al(2)O(3): Mg2+ crystal is obtained. The result is consistent with the expectations based on the electrostatic interaction and electron cloud overlap. The signs of hyperfine structure constants A(parallel to) and A(perpendicular to) are suggested. (C) 2008 Elsevier B.V. All rights reserved.
部门归属	[jia gu-ming; he lv; zheng wen-chen] sichuan univ, dept mat sci, chengdu 610064, peoples r china. [he lv] zhejiang normal univ, coll math phys & informat engn, jinhua 321004, peoples r china. [zheng wen-chen] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;zheng, wc (reprint author), sichuan univ, dept mat sci, chengdu 610064, peoples r china;zhengwcl@163.com
关键词	Electron Paramagnetic Resonance Defect Structure Crystal-field Theory Co(4+) Al(2)o(3) Paramagnetic-resonance Optical Spectra Pressure Ions Epr Impurities Ruby Alpha-al2o3 Insulators Fields
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WOS记录号	WOS:000261605600020
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32843
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	G. M. Jia,L. He,W. C. Zheng. Spin-Hamiltonian parameters and defect structure for Co(4+) in Al(2)O(3):Mg(2+) crystal[J]. Physica B-Condensed Matter,2008,403(21-22):3950-3952.
APA	G. M. Jia,L. He,&W. C. Zheng.(2008).Spin-Hamiltonian parameters and defect structure for Co(4+) in Al(2)O(3):Mg(2+) crystal.Physica B-Condensed Matter,403(21-22),3950-3952.
MLA	G. M. Jia,et al."Spin-Hamiltonian parameters and defect structure for Co(4+) in Al(2)O(3):Mg(2+) crystal".Physica B-Condensed Matter 403.21-22(2008):3950-3952.