Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

Analyse of structural and electrical properties of NaBa((2-x))Nd-2x/3Nb5O15 solid solution with (0 < x <1)

Abstract : The structural and electrical properties of NaBa(2-x)Nd2x/3Nb5O15 ceramics were reported. All samples were prepared by the conventional solid-state reaction. A Room temperature X-ray study has allowed identifying the stabilization of tetragonal Tungsten Bronzes (TTB) structure with P4bm as space group for low Nd3+ concentration, whereas a centrosymmetric space group P4/mbm has been revealed for the high concentration. The dielectric study carried out on the prepared ceramics showed that the studied system undergo a behavior change from normal ferroelectric to a relaxor one with the increasing Neodymium amount. The complex impedance spectroscopy highlighted a thermally activated relaxation process in our samples. A short-range relaxation is proposed for x = 0.3 sample, while a possible coexistence of both localized and long-range relaxation for x = 1. Further, the Nyquist plot of the impedance is given for the low and higher Nd3+ samples and a simple model is proposed to fit the results.
Type de document :
Article dans une revue
Liste complète des métadonnées

https://hal-u-picardie.archives-ouvertes.fr/hal-03608398
Contributeur : Louise DESSAIVRE Connectez-vous pour contacter le contributeur
Soumis le : lundi 14 mars 2022 - 16:45:44
Dernière modification le : lundi 12 septembre 2022 - 11:56:26

Identifiants

Collections

Citation

M. Belarbi, Manal Benyoussef, Y. Tamraoui, B. Manoun, A. Cantaluppi, et al.. Analyse of structural and electrical properties of NaBa((2-x))Nd-2x/3Nb5O15 solid solution with (0 < x <1). Materials Chemistry and Physics, Elsevier, 2022, 277, ⟨10.1016/j.matchemphys.2021.125513⟩. ⟨hal-03608398⟩

Partager

Métriques

Consultations de la notice

7