THEORETICAL STUDIES OF THE SPIN HAMILTONIAN PARAMETERS AND LOCAL STRUCTURE FOR THE TETRAGONAL Rh2+ CENTER IN RHOMBOHEDRAL BaTiO3

doi:10.1142/S0217984909020266

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	THEORETICAL STUDIES OF THE SPIN HAMILTONIAN PARAMETERS AND LOCAL STRUCTURE FOR THE TETRAGONAL Rh2+ CENTER IN RHOMBOHEDRAL BaTiO3
	Zhang, Hua-Ming 1; Wu, Shao-Yi 1,2; Wang, Xue-Feng 1; Hu, Yue-Xia 1
通讯作者	Zhang, Hua-Ming()
	2009-07-10
发表期刊	MODERN PHYSICS LETTERS B
ISSN	0217-9849
卷号	23 期号:17 页码:2115-2122
摘要	The spin Hamiltonian parameters and local structure for the tetragonal Rh2+ center in rhombohedral BaTiO3 are theoretically studied from the perturbation formulas of these parameters for a 4d(7) ion with low spin (S = 1/2) in tetragonally elongated octahedra. This center is ascribed to substitutional Rh2+ at the Ti4+ site in BaTiO3. The [RhO6](10-) cluster suffers relative elongation (characterized by the elongation parameter rho approximate to 0.9%) along the [100] axis due to the Jahn-Teller effect. The tetragonal elongation can entirely depress the slight trigonal distortion of the original Ti4+ site in rhombohedral BaTiO3. The calculated spin Hamiltonian parameters based on the above Jahn-Teller elongation show good agreement with the experimental results.
关键词	Electron paramagnetic resonance crystal and ligand fields Rh2+ BaTiO3
资助者	UESTC
DOI	10.1142/S0217984909020266
收录类别	SCI
语种	英语
资助项目	UESTC
WOS研究方向	Physics
WOS类目	Physics, Applied ; Physics, Condensed Matter ; Physics, Mathematical
WOS记录号	WOS:000268447500004
出版者	WORLD SCIENTIFIC PUBL CO PTE LTD
引用统计	被引频次：6[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/321006/96133
专题	中国科学院金属研究所
通讯作者	Zhang, Hua-Ming
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	Zhang, Hua-Ming,Wu, Shao-Yi,Wang, Xue-Feng,et al. THEORETICAL STUDIES OF THE SPIN HAMILTONIAN PARAMETERS AND LOCAL STRUCTURE FOR THE TETRAGONAL Rh2+ CENTER IN RHOMBOHEDRAL BaTiO3[J]. MODERN PHYSICS LETTERS B,2009,23(17):2115-2122.
APA	Zhang, Hua-Ming,Wu, Shao-Yi,Wang, Xue-Feng,&Hu, Yue-Xia.(2009).THEORETICAL STUDIES OF THE SPIN HAMILTONIAN PARAMETERS AND LOCAL STRUCTURE FOR THE TETRAGONAL Rh2+ CENTER IN RHOMBOHEDRAL BaTiO3.MODERN PHYSICS LETTERS B,23(17),2115-2122.
MLA	Zhang, Hua-Ming,et al."THEORETICAL STUDIES OF THE SPIN HAMILTONIAN PARAMETERS AND LOCAL STRUCTURE FOR THE TETRAGONAL Rh2+ CENTER IN RHOMBOHEDRAL BaTiO3".MODERN PHYSICS LETTERS B 23.17(2009):2115-2122.