Investigations on the defect structure and the EPR parameters for AgBr:Ir2+

doi:10.1051/epjap/2009138

IMR OpenIR

	Investigations on the defect structure and the EPR parameters for AgBr:Ir2+
	Hu, Y. -X.1; Wu, S. -Y.1,2; Wang, X. -F.1; Xu, P.1
通讯作者	Hu, Y. -X.()
	2009-11-01
发表期刊	EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS
ISSN	1286-0042
卷号	48 期号:2 页码:5
摘要	The defect structure and the EPR parameters (the g factors, the hyperfine structure constants and the superhyperfine parameters) for the tetragonal Ir2+ center in AgBr are theoretically investigated using the perturbation formulas of these parameters for a 5d(7) ion in tetragonally elongated octahedra. In the calculations, the contributions from the ligand orbital and spin-orbit coupling interactions and the local lattice (elongation) distortion due to the Jahn-Teller effect are taken into account. Related molecular orbital coefficients and the ligand unpaired spin densities are determined quantitatively using a cluster approach. The impurity center is attributed to the substitutional [IrBr6](4-) cluster on host Ag+ site, which suffers the relative elongation of about 0.08 angstrom along C-4 axis due to the Jahn-Teller effect. The calculated EPR parameters based on the above Jahn-Teller elongation show good agreement with the observed values.
资助者	Support Program for Academic Excellence of UESTC ; Natural Science Foundation
DOI	10.1051/epjap/2009138
收录类别	SCI
语种	英语
资助项目	Support Program for Academic Excellence of UESTC ; Natural Science Foundation[CSTC 2008BB4083]
WOS研究方向	Physics
WOS类目	Physics, Applied
WOS记录号	WOS:000270906500017
出版者	CAMBRIDGE UNIV PRESS
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/99423
专题	中国科学院金属研究所
通讯作者	Hu, Y. -X.
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
推荐引用方式 GB/T 7714	Hu, Y. -X.,Wu, S. -Y.,Wang, X. -F.,et al. Investigations on the defect structure and the EPR parameters for AgBr:Ir2+[J]. EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS,2009,48(2):5.
APA	Hu, Y. -X.,Wu, S. -Y.,Wang, X. -F.,&Xu, P..(2009).Investigations on the defect structure and the EPR parameters for AgBr:Ir2+.EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS,48(2),5.
MLA	Hu, Y. -X.,et al."Investigations on the defect structure and the EPR parameters for AgBr:Ir2+".EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS 48.2(2009):5.