Studies of the EPR parameters and the local tetragonal distortion of V4+-doped SrTiO3 crystal

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	Studies of the EPR parameters and the local tetragonal distortion of V4+-doped SrTiO3 crystal
	W. C. Zheng; Y. J. Fan; W. B. Xiao-Xuan
	2005
发表期刊	Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences
ISSN	0932-0784
卷号	60 期号:6 页码:433-436
摘要	The EPR parameters (g factors g(parallel to), g(perpendicular to) and hyperfine structure constants A(parallel to), A(perpendicular to)) of V4+ ion in the tetragonal phase of SrTiO3 crystal were studied by high-order perturbation formulas based on a two-spin-orbit-parameter model, where the contributions from the spin-orbit-coupling-parameter of central 3d(n) ion and that of ligands are considered. It is found that the oxygen octahedron surrounding the impurity ion V4+ changes from elongation along the tetragonal axis in the pure crystal to compression and the magnitude of tetragonal distortion of oxygen octahedron (characterized by \|Delta R\| = \|R-parallel to -R-perpendicular to\|) in V4+ center is much greater than the corresponding value in the pure crystal. The cause related to the strong Jahn-Teller effect is discussed.
部门归属	sichuan univ, dept mat sci, chengdu 610064, peoples r china. civil aviat flying inst china, dept phys, guanghan 618307, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;zheng, wc (reprint author), sichuan univ, dept mat sci, chengdu 610064, peoples r china;zhenawc1@163.com
关键词	Electron Paramagnetic Resonance Crystal- And ligAnd-field Jahn-teller Effect V4++ Srtio3 Atomic Screening Constants Optical Spectra Scf Functions Ions Phase Fe3++ Transition Impurity Fields
URL	查看原文
WOS记录号	WOS:000230514400008
引用统计	被引频次：43[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/321006/35280
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. C. Zheng,Y. J. Fan,W. B. Xiao-Xuan. Studies of the EPR parameters and the local tetragonal distortion of V4+-doped SrTiO3 crystal[J]. Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences,2005,60(6):433-436.
APA	W. C. Zheng,Y. J. Fan,&W. B. Xiao-Xuan.(2005).Studies of the EPR parameters and the local tetragonal distortion of V4+-doped SrTiO3 crystal.Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences,60(6),433-436.
MLA	W. C. Zheng,et al."Studies of the EPR parameters and the local tetragonal distortion of V4+-doped SrTiO3 crystal".Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences 60.6(2005):433-436.