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.

引用

页码：24 / 27

页数：4

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