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
刊名	Journal of Superconductivity and Novel Magnetism
	2010
卷号	23 期号:5 页码:829-831
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)
ISSN号	1557-1939
中文摘要	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.
原文出处	://WOS:000278546800054
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://210.72.142.130/handle/321006/31695]
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. 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.