Investigations of the Spin Hamiltonian Parameters for the Cu(2+) Sites in PrBa(2)Cu(3)O(6+x) and Pr(0.5)Er(0.5)Ba(2)Cu(3)O(6+x)

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	Investigations of the Spin Hamiltonian Parameters for the Cu(2+) Sites in PrBa(2)Cu(3)O(6+x) and Pr(0.5)Er(0.5)Ba(2)Cu(3)O(6+x)
	H. M. Zhang; S. Y. Wu; X. F. Wang; Y. X. Hu
	2010
发表期刊	Journal of Superconductivity and Novel Magnetism
ISSN	1557-1939
卷号	23 期号:5 页码:829-831
摘要	The spin Hamiltonian parameters (the anisotropic g factors g(parallel to) and g(perpendicular to) and the hyperfine structure constants) for the Cu(2+) sites in PrBa(2)Cu(3)O(6+x) and Pr(0.5)Er(0.5)Ba(2)Cu(3)O(6+x) are theoretically investigated using the high order perturbation formulas of these parameters for a 3d(9) ion in tetragonally elongated octahedra. In these formulas, the tetragonal field parameters are determined from the superposition model and the local structures of the Cu(2+) The theoretical spin Hamiltonian parameters are ill good agreement with the observed values for both systems, and the results show improvements as compared with those based on various adjustable covalency coefficients in the previous work. The larger hyperfine structure constants for PrBa(2)Cu(3)O(6+x) than those for Pr(0.5)Er(0.5)Ba(2)Cu(3)O(6+x) can be attributed to the weaker covalency clue to the relatively longer Cu(2+)-O(2) bonds in the former.
部门归属	[zhang, h. m.; wu, s. y.; wang, x. f.; hu, y. x.] univ elect sci & technol china, dept appl phys, chengdu 610054, peoples r china. [wu, s. y.] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;zhang, hm (reprint author), univ elect sci & technol china, dept appl phys, chengdu 610054, peoples r china;huamingzhang66@gmail.com
关键词	Crystal Fields And Spin Hamiltonians Electron Paramagnetic Resonance Cu(2+) Prba(2)Cu(3)o(6+x) Pr(0.5)Er(0.5)Ba(2)Cu(3)o(6+x)
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31695
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. M. Zhang,S. Y. Wu,X. F. Wang,et al. Investigations of the Spin Hamiltonian Parameters for the Cu(2+) Sites in PrBa(2)Cu(3)O(6+x) and Pr(0.5)Er(0.5)Ba(2)Cu(3)O(6+x)[J]. Journal of Superconductivity and Novel Magnetism,2010,23(5):829-831.
APA	H. M. Zhang,S. Y. Wu,X. F. Wang,&Y. X. Hu.(2010).Investigations of the Spin Hamiltonian Parameters for the Cu(2+) Sites in PrBa(2)Cu(3)O(6+x) and Pr(0.5)Er(0.5)Ba(2)Cu(3)O(6+x).Journal of Superconductivity and Novel Magnetism,23(5),829-831.
MLA	H. M. Zhang,et al."Investigations of the Spin Hamiltonian Parameters for the Cu(2+) Sites in PrBa(2)Cu(3)O(6+x) and Pr(0.5)Er(0.5)Ba(2)Cu(3)O(6+x)".Journal of Superconductivity and Novel Magnetism 23.5(2010):829-831.