Studies of the spin Hamiltonian parameters for cubic V2+, Cr3+, and Mn4+ Centers in MgO and CaO, based on two mechanism models

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	Studies of the spin Hamiltonian parameters for cubic V2+, Cr3+, and Mn4+ Centers in MgO and CaO, based on two mechanism models
	S. Y. Wu; H. N. Dong
	2004
发表期刊	Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences
ISSN	0932-0784
卷号	59 期号:10 页码:689-693
摘要	The high-order perturbation formulas of the spin Hamiltonian (SH) parameters g-shift Deltag (= g - g(s)) and the hyperfine structure constant A for a 3d(3) ion in cubic octahedra are established, based on the two mechanism model. In this model, not only the contributions from the conventional crystal-field (CF) mechanism, but also those from the charge-transfer (CT) mechanism are taken into account. These formulas are applied to the investigation of the SH parameters of cubic V2+, Cr3+ and Mn4+ centers in MgO and CaO. Based on these studies, the sign of Deltag due to the CT mechanism is opposite to that due to the CF mechanism, while the signs of the A factor due to the CF and CT mechanisms are equal. The theoretical results, including the contributions from the CF and CT mechanisms, agree better with the observed values than those containing only the conventional CF mechanism.
部门归属	univ elect sci & technol china, dept appl phys, chengdu 610054, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china. chongqing univ posts & telecommun, coll elect engn, chongqing 400065, peoples r china.;wu, sy (reprint author), univ elect sci & technol china, dept appl phys, chengdu 610054, peoples r china;wushaoyi@netease.com
关键词	Crystal-fields And Spin Hamiltonians Electron Paramagnetic Resonance (Epr) V2++ Cr3++ Mn4++ Atomic Screening Constants Scf Functions Resonance Liyf4 Field Epr
URL	查看原文
WOS记录号	WOS:000225221600011
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/321006/35620
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	S. Y. Wu,H. N. Dong. Studies of the spin Hamiltonian parameters for cubic V2+, Cr3+, and Mn4+ Centers in MgO and CaO, based on two mechanism models[J]. Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences,2004,59(10):689-693.
APA	S. Y. Wu,&H. N. Dong.(2004).Studies of the spin Hamiltonian parameters for cubic V2+, Cr3+, and Mn4+ Centers in MgO and CaO, based on two mechanism models.Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences,59(10),689-693.
MLA	S. Y. Wu,et al."Studies of the spin Hamiltonian parameters for cubic V2+, Cr3+, and Mn4+ Centers in MgO and CaO, based on two mechanism models".Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences 59.10(2004):689-693.