Zero-field splittings and local tilting angles tau(Mn2+) for Mn2+ in ZnGeP2 and CdGeP2 crystals

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	Zero-field splittings and local tilting angles tau(Mn2+) for Mn2+ in ZnGeP2 and CdGeP2 crystals
	H. G. Liu; X. X. Wu; W. C. Zheng
	2008
发表期刊	Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy
ISSN	1386-1425
卷号	71 期号:2 页码:417-420
摘要	The electron paramagnetic resonance (EPR) zero-field splittings (ZFSs) D of Mn2+ in ZnGeP2 and CdGeP2 crystals are calculated from both the microscopic spin-orbit coupling mechanism and the empirical superposition model. From the calculations, the ZFS D of ZnGeP2:Mn2+ is reasonably explained by using the local tilting angle tau(Mn2+) (rather than the corresponding angle tau(Zn2+) in the host crystal) and the local tilting angle tau(Mn2+) (which has not been reported) in CdGeP2:Mn2+ is estimated. The intrinsic ZFS parameter (b) over bar (2) (R-0) approximate to -0.052(6) cm(-1) (with R-0 approximate to 2.43 angstrom A) is suggested for Mn2+-P3- combination by using the local tilting angles tau(Mn2+). The value is quite unlike that (approximate to 0.4(2) cm(-1)) obtained in the previous paper by combining the crystallographic data of host crystals with the ZFSs for Mn2+ ions in crystals. The reasonableness of these results is discussed. (c) 2008 Elsevier B.V. All rights reserved.
部门归属	[liu hong-gang; zheng wen-chen] sichuan univ, dept mat sci, chengdu 610064, peoples r china. [wu xiao-xuan] civil aviat flight univ china, dept phys, guanghan 618307, peoples r china. [zheng wen-chen] 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;zhengwc1@163.com
关键词	Electron Paramagnetic Resonance (Epr) Defect Structure Crystal- And Ligand-field Theory Superposition Model Mn2++ Zngep2 Gdgep2 Room-temperature Ferromagnetism Cr3++ Ions Semiconductors Epr Parameters Dependence Znsip2
URL	查看原文
WOS记录号	WOS:000261046200020
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/321006/32945
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. G. Liu,X. X. Wu,W. C. Zheng. Zero-field splittings and local tilting angles tau(Mn2+) for Mn2+ in ZnGeP2 and CdGeP2 crystals[J]. Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,2008,71(2):417-420.
APA	H. G. Liu,X. X. Wu,&W. C. Zheng.(2008).Zero-field splittings and local tilting angles tau(Mn2+) for Mn2+ in ZnGeP2 and CdGeP2 crystals.Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,71(2),417-420.
MLA	H. G. Liu,et al."Zero-field splittings and local tilting angles tau(Mn2+) for Mn2+ in ZnGeP2 and CdGeP2 crystals".Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy 71.2(2008):417-420.