Effect of cobalt doping on the local structure and dynamics of multiferroic MnWO4 and Mn0.7Co0.3WO4

被引：5
|
作者：
Kuzmin, A. [1 ]
Anspoks, A. [1 ]
Kalinko, A. [1 ]
Timoshenko, J. [1 ]
机构：
[1] Latvian State Univ, Inst Solid State Phys, LV-1063 Riga, Latvia
来源：
15TH INTERNATIONAL CONFERENCE ON X-RAY ABSORPTION FINE STRUCTURE (XAFS15) | 2013年 / 430卷
关键词：
SPECTROSCOPY;
D O I：
10.1088/1742-6596/430/1/012109
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The local atomic structure and dynamics in multiferroic MnWO4 and Mn0.7Co0.3WO4 have been studied by X-ray absorption spectroscopy at the Co(Mn) K-edge and W L-3-edge. The analysis of the first coordination shell of metal ions using single-shell Gaussian approximation and regularization-like method allowed us to determine a distortion of Mn(Co)O-6 and WO6 octahedra. It was found that the local environment of Co2+ ions in Mn0.7Co0.3WO4 is close to that in CoWO4, whereas the presence of cobalt ions reduces the distortion of MnO6 octahedra in comparison with pure MnWO4.
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页数：4
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