Investigation on the EPR parameters and local structure for the Cu2+ center in ZnAl2O4 spinel
Investigation on the EPR parameters and local structure for the Cu2+ center in ZnAl2O4 spinel
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ZnAl2O4尖晶石Cu2中心的EPR参数和局域结构研究
DOI:
10.1016/j.jmmm.2015.04.066
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发表时间:
2015-09
影响因子:
2.7
通讯作者:
Hua-Ming Zhang
中科院分区:
文献类型:
--
作者:
Hua-Ming Zhang
High-order perturbation formulas for a 3d9ion in tetragonally elongated octahedral was applied to calculate the electron paramagnetic resonance (EPR) parameters (gfactorsg||,g⊥and hyperfine structure constantsA||,A⊥) of the tetragonal Cu2+center in ZnAl2O4spinel at the temperatureT=4.2 K. In the calculations, the required crystal-field parameters are estimated from the superposition model which enables correlation of the crystal-field parameters and hence the EPR parameters with the tetragonal distortion (characterized by relative tetragonal elongation ratioρalong theC4axis due to the Jahn–Teller effect) of [CuO6]10−cluster, and the ligand orbital and spin–orbit coupling contributions are included on the basis of the cluster approach in view of moderate covalency for the studied systems. The calculated results show good agreement with the experimental data.
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影响因子:
3.5
作者:
Huaming Zhang;Shao-yi Wu;Zhi-Hong Zhang
通讯作者:
Huaming Zhang;Shao-yi Wu;Zhi-Hong Zhang
DOI:
10.1002/pssb.200945131
发表时间:
2009-08
期刊:
physica status solidi (b)
影响因子:
--
作者:
W. Feng
通讯作者:
W. Feng
影响因子:
--
作者:
Huaming Zhang;Shao-yi Wu;Li-Li Li-Li-Li;P. Xu
通讯作者:
Huaming Zhang;Shao-yi Wu;Li-Li Li-Li-Li;P. Xu
影响因子:
2.8
作者:
W. Feng;Weiqing Yang;W. Zheng;Honggang Liu
通讯作者:
W. Feng;Weiqing Yang;W. Zheng;Honggang Liu
影响因子:
18.1
作者:
D. Newman;B. Ng
通讯作者:
D. Newman;B. Ng