Synthesis, structural and dielectric properties of SrBi 2 –  x  Sm  x  Nb 2 O 9

Mohamed Afqir; A. Tachafine; D. Fasquelle; M. Elaatmani; J. C. Carru; A. Zegzouti; M. Daoud

doi:10.3103/S0027134917020023

Synthesis, structural and dielectric properties of SrBi_{2 – x}Sm_xNb₂O₉

Authors: Afqir M.¹^,2, Tachafine A.², Fasquelle D.², Elaatmani M.¹, Carru J.C.², Zegzouti A.¹, Daoud M.¹
Affiliations:
1. Laboratoire des Sciences des Matériaux Inorganiques et leurs Applications, Faculté des Sciences Semlalia
2. Unité de Dynamique et Structure des Matériaux Moléculaires
Issue: Vol 72, No 2 (2017)
Pages: 196-202
Section: Chemical Physics, Physical Kinetics, and Plasma Physics
URL: https://journals.rcsi.science/0027-1349/article/view/164747
DOI: https://doi.org/10.3103/S0027134917020023
ID: 164747

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Abstract
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Abstract

The SrBi_{2 – x}Sm_xNb₂O₉ (x = 0, 0.4, 0.5) structure were synthesized by a conventional solid-state method. The X-ray diffraction shows an orthorhombic at room temperature. Dielectric constant, loss tangent and Ac conductivity of Sm-doped SrBi₂Nb₂O₉ were carried out, as well. A higher concentration of samarium (x = 0.4 and 0.5) doping leads to a significant reduction in dielectric constant and in Curie temperature. Rather relaxor type of behaviour took place.

Keywords

Aurivillius, solid-state, dielectric properties, electrical conductivity

About the authors

Mohamed Afqir

Laboratoire des Sciences des Matériaux Inorganiques et leurs Applications, Faculté des Sciences Semlalia; Unité de Dynamique et Structure des Matériaux Moléculaires

Author for correspondence.
Email: mohamed.afqir@yahoo.fr
Morocco, Marrakesh, 40000; Calais, 62228