Crystallographic and spectroscopic characterization of LnFeTeO6 (Ln = La, Pr, Nd, Sm) materials

被引：16
|
作者：
Lavat, Araceli E. [2 ]
Mercader, Roberto C. [3 ,4 ]
Baran, Enrique J. [1 ]
机构：
[1] Univ Nacl La Plata, Fac Ciencias Exactas, Ctr Quim Inorgan CEQUINOR CONICET, RA-1900 La Plata, Argentina
[2] Univ Nacl Ctr Prov Buenos Aires, Fac Ingn, Dept Ingn Quim, RA-7400 Olavarria, Argentina
[3] Univ Nacl La Plata, Fac Ciencias Exactas, Dept Fis, RA-1900 La Plata, Argentina
[4] Univ Nacl La Plata, Fac Ciencias Exactas, Inst IFLP CONICET, RA-1900 La Plata, Argentina
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 508卷 / 01期
关键词：
Mixed oxides; PbSb2O6; superstructure; X-ray diffraction; Vibrational spectra; Fe-57-Mossbauer spectra; VIBRATIONAL-SPECTRA; ORDERED PEROVSKITES; OXIDES; OCTAHEDRA;
D O I：
10.1016/j.jallcom.2010.08.054
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Four mixed oxides of composition LnFeTeO(6) (with Ln = La, Pr, Nd, Sm), belonging to a superstructure of the PbSb2O6 structural type, have been prepared by solid state reactions and their unit cell parameters determined by X-ray powder diffractometry. The infrared and Raman spectra of these materials were also recorded and briefly discussed, on the basis of a site-symmetry analysis. The Fe-57-Mossbauer spectra show that the (FeO6)-O-III octahedra present in these materials are not greatly distorted. (C) 2010 Elsevier B.V. All rights reserved.
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收藏
页码：24 / 27
页数：4
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