Investigations of the spin-Hamiltonian parameters for Ta(4+) ions in LiTaO(3) crystal

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	Investigations of the spin-Hamiltonian parameters for Ta(4+) ions in LiTaO(3) crystal
	H. Lv ; Z. Wen-Chen
刊名	Journal of Alloys and Compounds
	2009
卷号	477 期号:1-2 页码:40911
关键词	Inorganic materials Crystal and ligand fields Point defects Electron paramagnetic resonance electron-paramagnetic-res orthophosphate mpo4 m single-crystals holographic storage optical-absorption lithium tantalate epr parameters y crystals impurities pressure
ISSN号	0925-8388
中文摘要	The spin-Hamiltonian parameters (g factors g(parallel to), g(perpendicular to) and hyperfine structure constants A(parallel to) A(perpendicular to)) of Ta(4+) ion (which is produced by a self-trapped electron at the Ta(5+) site) in LiTaO(3) crystal are calculated from three theoretical methods, the complete diagonalization (of energy matrix including Zeeman interaction and hyperfine interaction) method (CDM), the first-order perturbation formulas related to (2)T(2) state and the third-order perturbation formulas. From the calculations, it is found that only the calculated results using the CDM show good agreement with the experimental values, but those using the rest two methods do not. The causes are discussed. The defect structure of Ta(4+) defect in LiTaO(3) is also obtained from the calculations. The result is coincident with the expectation based on the electrostatic interaction and electron cloud overlap. (C) 2008 Elsevier B.V. All rights reserved.
原文出处	://WOS:000266386400013
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://210.72.142.130/handle/321006/32171]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	H. Lv,Z. Wen-Chen. Investigations of the spin-Hamiltonian parameters for Ta(4+) ions in LiTaO(3) crystal[J]. Journal of Alloys and Compounds,2009,477(1-2):40911.
APA	H. Lv,&Z. Wen-Chen.(2009).Investigations of the spin-Hamiltonian parameters for Ta(4+) ions in LiTaO(3) crystal.Journal of Alloys and Compounds,477(1-2),40911.
MLA	H. Lv,et al."Investigations of the spin-Hamiltonian parameters for Ta(4+) ions in LiTaO(3) crystal".Journal of Alloys and Compounds 477.1-2(2009):40911.