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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
刊名	Radiation Effects and Defects in Solids
	2009
卷号	164期号:3页码:178-182
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
ISSN号	1042-0150
中文摘要	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.
原文出处	://WOS:000264219800005
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://210.72.142.130/handle/321006/32616]
专题	金属研究所_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.

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