info:eu-repo/semantics/article
Crystallographic and spectroscopic characterization of LnFeTeO6 (Ln = La, Pr, Nd, Sm) materials
Fecha
2010-10-15Registro en:
Lavat, Araceli Elisabet; Mercader, Roberto Carlos; Baran, Enrique José; Crystallographic and spectroscopic characterization of LnFeTeO6 (Ln = La, Pr, Nd, Sm) materials; Elsevier Science; Journal of Alloys and Compounds; 508; 1; 15-10-2010; 24-27
0925-8388
CONICET Digital
CONICET
Autor
Lavat, Araceli Elisabet
Mercader, Roberto Carlos
Baran, Enrique José
Resumen
Four mixed oxides of composition LnFeTeO6 (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 57Fe-Mössbauer spectra show that the FeIIIO6 octahedra present in these materials are not greatly distorted.