The Estimation of the Mn Atoms Chemical Bonding in (Na1-xBix)(Nb1-yMny)O3 Ceramics and Changeover in the Electrical Properties

被引：13
作者：
Molak, A. [1 ]
Lawniczak-Jablonska, K. [2 ]
Nachimuthu, P. [3 ]
Perera, R. C. C. [3 ]
机构：
[1] Univ Silesia, Inst Phys, PL-40007 Katowice, Poland
[2] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland
[3] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Ctr Xray Opt, Berkeley, CA 94720 USA
来源：
FERROELECTRICS | 2011年 / 418卷
关键词：
Covalent and ionic bonding; dielectric permittivity; electric conductivity; XANES; ELECTRONIC-STRUCTURE; TRANSITION; PERMITTIVITY; RELAXATION; MODULUS;
D O I：
10.1080/00150193.2011.578544
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The chemical bonding of Mn atoms in (Na1-xBix)(Nb1-yMny)O-3 ceramics were analysed using the X-ray Absorption Near Edge Structure (XANES) measurement at the Mn L-3,L-2-edge. In all the compounds coexistence of the covalent bonding Mn-CV state and ionic Mn+k states was found. The increase in the Bi and Mn content caused the marked dispersion and increased the values of electric conductivity and dielectric permittivity of the ceramics.
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收藏
页码：14 / 18
页数：5
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