XANES MnK edge in NaNbO3 based ceramics doped with Mn and Bi ions

被引：0

作者：

Wolska, A. ^{[1
,2
]}

Molak, A. ^{[3
]}

Lawniczak-Jablonska, K. ^{[2
]}

Kachniarz, J. ^{[2
]}

Piskorska, E. ^{[2
]}

Demchenko, I. ^{[2
]}

Gruszka, I. ^{[3
]}

Lindle, D. W. ^{[1
]}

机构：

[1] Univ Nevada, Dept Chem, Las Vegas, NV 89154 USA

[2] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland

[3] Univ Silesia, Inst Phys, PL-40007 Katowice, Poland

来源：

PHYSICA SCRIPTA | 2005年 / T115卷

关键词：

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Sodium niobate based ceramics doped with Mn atoms have been sintered from oxides. The Bi co-dopants were introduced to increase the solubility limit for Mn atoms. Two series of samples were heated at lowered air pressure to produce oxygen nonstoichiometry. X-ray Absorption Near Edge Structure (XANES) spectra at Mn K-edge were measured for samples with and without Bi co-dopants. Theoretical XANES spectra were calculated using the Real Space Multiple Scattering method (FEFF 8 code). The simulation showed that ceramics samples have Pbcm symmetry and all of them have Mn atoms located in a Nb sublattice.

引用

页码：989 / 991

页数：3

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