Calculations of EPR g factors for the isolated tetragonal Cu2+(II) centre in mechanically processed YBa2Cu3O7-delta superconductors

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	Calculations of EPR g factors for the isolated tetragonal Cu2+(II) centre in mechanically processed YBa2Cu3O7-delta superconductors
	W. C. Zheng ; Y. Mei ; Y. G. Yang ; P. Su
刊名	Physica Scripta
	2012
卷号	86 期号:2
关键词	electron-paramagnetic-resonance spin-hamiltonian parameters atomic screening constants temperature-dependence crystal-field single-crystals gyromagnetic factor scf functions ions yba2cu3o6+x
ISSN号	0031-8949
中文摘要	The g factors g (parallel to) and g (vertical bar) of the isolated tetragonal Cu(II)O-5 cluster in YBa2Cu3O7-delta superconductors induced and suppressed by mechanical processing are calculated from the complete diagonalization (of the energy matrix) method (CDM) and the perturbation theory method (PTM). Both methods are based on the cluster approach where in addition to the contribution of the spin-orbit parameter of the central metal ion, the contribution of ligand ion via the covalence effect is taken into account. In the calculations, the structural data of the Cu(II)O-5 cluster gained from x-ray diffraction are applied. The results from both the CDM and the PTM are similar and show reasonable agreement with the experimental values. It appears that both methods can be used to explain the EPR g factors for d(9) ions in crystals.
原文出处	://WOS:000307305900022
公开日期	2013-02-05
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/60507]
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	W. C. Zheng,Y. Mei,Y. G. Yang,et al. Calculations of EPR g factors for the isolated tetragonal Cu2+(II) centre in mechanically processed YBa2Cu3O7-delta superconductors[J]. Physica Scripta,2012,86(2).
APA	W. C. Zheng,Y. Mei,Y. G. Yang,&P. Su.(2012).Calculations of EPR g factors for the isolated tetragonal Cu2+(II) centre in mechanically processed YBa2Cu3O7-delta superconductors.Physica Scripta,86(2).
MLA	W. C. Zheng,et al."Calculations of EPR g factors for the isolated tetragonal Cu2+(II) centre in mechanically processed YBa2Cu3O7-delta superconductors".Physica Scripta 86.2(2012).