Optical absorption and EPR study of the octahedral Fe3+ center in yttrium aluminum garnet

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	Optical absorption and EPR study of the octahedral Fe3+ center in yttrium aluminum garnet
	D. Dong; K. Xiao-Yu; G. Jian-Jun; W. Hui; Z. Kang-Wei
	2005
发表期刊	Physical Review B
ISSN	1098-0121
卷号	72 期号:7
摘要	The optical-absorption and EPR spectra of octahedral Fe3+ center in yttrium aluminum garnet have been studied by diagonalizing the complete energy matrices for a d(5) configuration ion in a trigonal ligand field. It is shown that the local lattice structure around an octahedrally coordinated Fe3+ center has an expansion distortion. The expansion distortion may be attributed to the fact that the radius of Fe3+ ion is larger than that of Al3+ ion, and the Fe3+ ion will push the oxygen ligands outwards. Simultaneously, the local lattice structure distortion parameters Delta R=0.0907 A and Delta theta=1.940 degrees for the octahedral Fe3+ center in the crystal are determined. From optical spectra calculation, we confirm that two strong sharp transitions at 407 and 415 nm, which are apparent in the optical absorption spectra for lightly doped YAG:Fe3+ system, should be ascribed to the tetrahedral Fe3+ center. This is also in accord with the conclusion of Rotman [J. Appl. Phys. 66, 3207 (1989)].
部门归属	sichuan univ, inst atom & mol phys, chengdu 610065, peoples r china. xihua univ, inst appl phys, chengdu 610039, peoples r china. sichuan univ, dept phys, chengdu 610065, peoples r china. acad sinica, int ctr mat phys, shenyang 110016, peoples r china.;xiao-yu, k (reprint author), sichuan univ, inst atom & mol phys, chengdu 610065, peoples r china;scu_kxy@163.com
关键词	Electron-paramagnetic-resonance Crystals Field Ion Parameters Impurities Fe-3++
URL	查看原文
WOS记录号	WOS:000231564500001
引用统计	被引频次：32[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/321006/34830
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	D. Dong,K. Xiao-Yu,G. Jian-Jun,et al. Optical absorption and EPR study of the octahedral Fe3+ center in yttrium aluminum garnet[J]. Physical Review B,2005,72(7).
APA	D. Dong,K. Xiao-Yu,G. Jian-Jun,W. Hui,&Z. Kang-Wei.(2005).Optical absorption and EPR study of the octahedral Fe3+ center in yttrium aluminum garnet.Physical Review B,72(7).
MLA	D. Dong,et al."Optical absorption and EPR study of the octahedral Fe3+ center in yttrium aluminum garnet".Physical Review B 72.7(2005).