Studies of local phase transition behavior for Co2+ in CsCaCl3 crystals from EPR data

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	Studies of local phase transition behavior for Co2+ in CsCaCl3 crystals from EPR data
	S. Y. Wu; W. C. Zheng; P. Ren
	2000
发表期刊	Applied Magnetic Resonance
ISSN	0937-9347
卷号	18 期号:4 页码:565-573
摘要	In this paper, we establish the calculation formulas of g factors g(parallel to), g(perpendicular to) and the hyperfine structure constants A(parallel to), A(perpendicular to), for 3d(7) ions in tetragonal octahedral field from a cluster approach. In these formulas, besides the configuration interaction, the covalency effect due to the admixture between d electrons of 3d(7) ion and the p electrons of ligands is considered:d. The parameters used in these formulas (except the core polarization constants k in the calculation of A(i)) can be obtained from optical spectra of the studied crystal. From these formulas, the local release (or elongation) factor k, which is introduced to characterize the release effect of impurity-ligand bond along C-4 axis at the cubic to tetragonal phase transition, is estimated for CsCaCl3:Co2+ crystal by calculating the electronic paramagnetic resonance (EPR) parameters g(i) and A(i). These EPR parameters are therefore explained reasonably and the results are discussed.
部门归属	sichuan univ, dept mat sci, chengdu 610064, peoples r china. chinese acad sci, int ctr mat phys, shenyang, peoples r china.;wu, sy (reprint author), sichuan univ, dept mat sci, chengdu 610064, peoples r china
关键词	Superposition Model Ions
URL	查看原文
WOS记录号	WOS:000088227900013
引用统计	被引频次：13[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/321006/37208
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,P. Ren. Studies of local phase transition behavior for Co2+ in CsCaCl3 crystals from EPR data[J]. Applied Magnetic Resonance,2000,18(4):565-573.
APA	S. Y. Wu,W. C. Zheng,&P. Ren.(2000).Studies of local phase transition behavior for Co2+ in CsCaCl3 crystals from EPR data.Applied Magnetic Resonance,18(4),565-573.
MLA	S. Y. Wu,et al."Studies of local phase transition behavior for Co2+ in CsCaCl3 crystals from EPR data".Applied Magnetic Resonance 18.4(2000):565-573.