Theoretical investigations of the g factors and hyperfine structure constants for CdSe:Mn(2+) nanocrystals

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	Theoretical investigations of the g factors and hyperfine structure constants for CdSe:Mn(2+) nanocrystals
	L. L. Li; S. Y. Wu; X. F. Wang; P. Xu
	2010
发表期刊	Physica Scripta
ISSN	0031-8949
卷号	82 期号:5
摘要	The g factors and hyperfine structure constants for CdSe:Mn(2+) nanocrystals are theoretically investigated with the perturbation formulae of these parameters for a 3d(5) ion in tetrahedra, by considering both the crystal-field and charge-transfer contributions. The contribution of the charge-transfer mechanism to the g-shift (= g - g(s), where g(s) = 2.0023 is the spin-only value) is opposite (positive) in sign and much larger in magnitude than that of the crystal-field mechanism. Comparatively, the importance of the charge-transfer contribution to the hyperfine structure constant is less significant than it is to the g-shift. That hyperfine structure constants for CdSe:Mn(2+) nanocrystals are larger than those for the bulk is attributed to the larger core polarization constant in the nanocrystals due to the size effect.
部门归属	[li, li-li; wu, shao-yi; wang, xue-feng; xu, pei] univ elect sci & technol china, dept appl phys, chengdu 610054, peoples r china. [wu, shao-yi] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;li, ll (reprint author), univ elect sci & technol china, dept appl phys, chengdu 610054, peoples r china;shaoyi_wu@163.com
关键词	Semiconductor Nanocrystals Quantum Dots Symmetry Luminescence Parameters Complexes Salts Ions Co
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31222
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. L. Li,S. Y. Wu,X. F. Wang,et al. Theoretical investigations of the g factors and hyperfine structure constants for CdSe:Mn(2+) nanocrystals[J]. Physica Scripta,2010,82(5).
APA	L. L. Li,S. Y. Wu,X. F. Wang,&P. Xu.(2010).Theoretical investigations of the g factors and hyperfine structure constants for CdSe:Mn(2+) nanocrystals.Physica Scripta,82(5).
MLA	L. L. Li,et al."Theoretical investigations of the g factors and hyperfine structure constants for CdSe:Mn(2+) nanocrystals".Physica Scripta 82.5(2010).