Local lattice distortion near Co2+ in SrLaAlO4 crystal

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	Local lattice distortion near Co2+ in SrLaAlO4 crystal; Local lattice distortion near Co2+ in SrLaAlO4 crystal
	S. Y. Wu; W. C. Zheng
	2001 ; 2001
发表期刊	Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences ; Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences
ISSN	0932-0784 ; 0932-0784
卷号	56 期号:8 页码:557-560
摘要	The local tetragonal distortion in the vicinity of substitutional Co2+ impurities in SrLaAlO4 crystal is studied by fitting the calculated EPR parameters g(parallel to), g(perpendicular to), A(parallel to) and A(perpendicular to) to the observed values. The result shows that the local distortion is mainly due to the elongation of metal-ligand distance R-perpendicular to perpendicular to the C-4 axis. This point is consistent with the expectation based on the consideration of ionic radius sum. This smaller tetragonal distortion of the oxygen octahedron surrounding the Co2+ impurity than that in the host crystal is supported by the result obtained in Cr3+-doped SrLaAlO4 crystal.; The local tetragonal distortion in the vicinity of substitutional Co2+ impurities in SrLaAlO4 crystal is studied by fitting the calculated EPR parameters g(parallel to), g(perpendicular to), A(parallel to) and A(perpendicular to) to the observed values. The result shows that the local distortion is mainly due to the elongation of metal-ligand distance R-perpendicular to perpendicular to the C-4 axis. This point is consistent with the expectation based on the consideration of ionic radius sum. This smaller tetragonal distortion of the oxygen octahedron surrounding the Co2+ impurity than that in the host crystal is supported by the result obtained in Cr3+-doped SrLaAlO4 crystal.
部门归属	sichuan univ, dept mat sci, chengdu 610064, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china. sichuan univ, key lab radiat phys & technol, minist educ, sichuan, peoples r china.;wu, sy (reprint author), sichuan univ, dept mat sci, chengdu 610064, peoples r china ; sichuan univ, dept mat sci, chengdu 610064, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china. sichuan univ, key lab radiat phys & technol, minist educ, sichuan, peoples r china.;wu, sy (reprint author), sichuan univ, dept mat sci, chengdu 610064, peoples r china
关键词	Defect Structure Defect Structure Electronic Paramagnetic Resonance (Epr) Electronic Paramagnetic Resonance (Epr) Crystal Field Crystal Field Theory Theory Srlaalo4 Crystal Srlaalo4 Crystal Co2++ Ion Co2++ Ion Superposition Model Superposition Model Cr3++ Ions Cr3++ Ions Epr Epr
URL	查看原文 ; 查看原文
WOS记录号	WOS:000171133700003 ; WOS:000171133700003
引用统计	被引频次：4[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/321006/36841
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	S. Y. Wu,W. C. Zheng. Local lattice distortion near Co2+ in SrLaAlO4 crystal, Local lattice distortion near Co2+ in SrLaAlO4 crystal[J]. Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences, Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences,2001, 2001,56, 56(8):557-560, 557-560.
APA	S. Y. Wu,&W. C. Zheng.(2001).Local lattice distortion near Co2+ in SrLaAlO4 crystal.Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences,56(8),557-560.
MLA	S. Y. Wu,et al."Local lattice distortion near Co2+ in SrLaAlO4 crystal".Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences 56.8(2001):557-560.