Spin-Hamiltonian parameters and off-center displacements for Rh4+and Ir4+ions in rhombohedral BaTiO3

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	Spin-Hamiltonian parameters and off-center displacements for Rh4+and Ir4+ions in rhombohedral BaTiO3
	W. C. Zheng; S. R. Zhang; L. He
	2009
发表期刊	Radiation Effects and Defects in Solids
ISSN	1042-0150
卷号	164 期号:3 页码:178-182
摘要	By means of the formulae based on the first-order theory of resonance for a low-spin 2T2 term in trigonal symmetry, the spin-Hamiltonian parameters (g factors g//, g and hyperfine structure constants A//, A) for Rh4+(4d5) and Ir4+(5d5) ions in the low-temperature rhombohedral phase of BaTiO3 are calculated. The calculated results are in reasonable agreement with the experimental values. From the calculations, the off-center displacements of Rh4+ and Ir4+ in the oxygen octahedra of BaTiO3 crystal are acquired. These impurity displacements are much smaller than that of the replaced host ion Ti4+. This point is analogous to the displacements of 3dn impurities Fe3+ and Co2+ in rhombohedral BaTiO3 obtained by analyzing their spin-Hamiltonian parameters.
部门归属	[zheng, wen-chen; he, lv] sichuan univ, dept mat sci, chengdu 610064, peoples r china. [zheng, wen-chen; zhang, shun-ru] chinese acad sci, int ctr mat phys, shenyang, peoples r china. [he, lv] zhejiang normal univ, coll math phys & informat engn, jinhua, peoples r china.;zheng, wc (reprint author), sichuan univ, dept mat sci, chengdu 610064, peoples r china;zhengwc1@163.com
关键词	Defect Structure Epr Spectra Crystal- And ligAnd-field Theory Batio3 Ru4++ Ir4++ Electron-paramagnetic-resonance Yttrium Gallium Garnet Orthophosphate Mpo4 m Optical-absorption Defect Structure Local-structure y Crystals Fe3++ Ions Epr Position
URL	查看原文
WOS记录号	WOS:000264219800005
引用统计	被引频次：2[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/321006/32616
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. C. Zheng,S. R. Zhang,L. He. Spin-Hamiltonian parameters and off-center displacements for Rh4+and Ir4+ions in rhombohedral BaTiO3[J]. Radiation Effects and Defects in Solids,2009,164(3):178-182.
APA	W. C. Zheng,S. R. Zhang,&L. He.(2009).Spin-Hamiltonian parameters and off-center displacements for Rh4+and Ir4+ions in rhombohedral BaTiO3.Radiation Effects and Defects in Solids,164(3),178-182.
MLA	W. C. Zheng,et al."Spin-Hamiltonian parameters and off-center displacements for Rh4+and Ir4+ions in rhombohedral BaTiO3".Radiation Effects and Defects in Solids 164.3(2009):178-182.