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Title: Synthesis, structural and dielectric properties of Ce-doped lead lanthanum titanate

Abstract

Highlights: • The effect of Ce doping on the structural, dielectric properties and ac conductivity of Pb{sub 0.79-x}Ce{sub x}La{sub 0.21}TiO{sub 3} was studied. • A pseudo-cubic single phase was observed for all samples. • The phase transition temperature is found to decrease with increasing Ce content. • Change of the nature of Pb{sub 0.79}La{sub 0.21}TiO{sub 3} phase transition upon Ce-doping. • Several essential dielectric parameters were extracted. - Abstract: The influence of Ce doping on the structural, dielectric and ac conductivity properties of Pb{sub 0.79-x}Ce{sub x}La{sub 0.21}TiO{sub 3} powders (x = 0, 0.01, 0.03, 0.05 and 0.1) was investigated. X-ray diffraction shows that all samples have the pseudo-cubic crystal structure, in which the tetragonality and cell volume decrease with increasing Ce content. The change of the dielectric constant as a function of temperature demonstrates that the phase transition temperature decreases with the increase of Ce content. Normal behavior of the phase transition from ferroelectric to paraelectric was observed for Ce-doped samples, while the undoped powders exhibit a combination of diffuse phase transition and relaxor behaviors. From electrical conductivity versus 1/T plots, we have determined the activation energy, which was found to increase with increasing Ce concentration.

Authors:
 [1];  [2];  [3];  [2];  [3];  [1];  [3];  [4]
  1. Renewable Energy Laboratory and Dynamic Systems, Faculté des Sciences Ain-Chock, Université Hassan II de Casablanca (Morocco)
  2. (Morocco)
  3. LPMMAT, Faculté des Sciences Ain-Chock, Université Hassan II de Casablanca, 5366 Maârif (Morocco)
  4. LPTA, Department of Physics, Faculty of Sciences-DM, B.P. 1796 Fez-Atlas (Morocco)
Publication Date:
OSTI Identifier:
22730374
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 92; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ACTIVATION ENERGY; CRYSTAL STRUCTURE; DIELECTRIC PROPERTIES; DOPED MATERIALS; ELECTRIC CONDUCTIVITY; FERROELECTRIC MATERIALS; PEROVSKITE; PHASE TRANSFORMATIONS; TEMPERATURE DEPENDENCE; TRANSITION TEMPERATURE; X-RAY DIFFRACTION

Citation Formats

Lemziouka, H., E-mail: lemzioukahamane@gmail.com, LPMMAT, Faculté des Sciences Ain-Chock, Université Hassan II de Casablanca, 5366 Maârif, Omari, L. H., LPTA, Department of Physics, Faculty of Sciences-DM, B.P. 1796 Fez-Atlas, Moubah, R., Abid, M., Lassri, H., and Sayouri, S. Synthesis, structural and dielectric properties of Ce-doped lead lanthanum titanate. United States: N. p., 2017. Web. doi:10.1016/J.MATERRESBULL.2017.04.009.
Lemziouka, H., E-mail: lemzioukahamane@gmail.com, LPMMAT, Faculté des Sciences Ain-Chock, Université Hassan II de Casablanca, 5366 Maârif, Omari, L. H., LPTA, Department of Physics, Faculty of Sciences-DM, B.P. 1796 Fez-Atlas, Moubah, R., Abid, M., Lassri, H., & Sayouri, S. Synthesis, structural and dielectric properties of Ce-doped lead lanthanum titanate. United States. doi:10.1016/J.MATERRESBULL.2017.04.009.
Lemziouka, H., E-mail: lemzioukahamane@gmail.com, LPMMAT, Faculté des Sciences Ain-Chock, Université Hassan II de Casablanca, 5366 Maârif, Omari, L. H., LPTA, Department of Physics, Faculty of Sciences-DM, B.P. 1796 Fez-Atlas, Moubah, R., Abid, M., Lassri, H., and Sayouri, S. Tue . "Synthesis, structural and dielectric properties of Ce-doped lead lanthanum titanate". United States. doi:10.1016/J.MATERRESBULL.2017.04.009.
@article{osti_22730374,
title = {Synthesis, structural and dielectric properties of Ce-doped lead lanthanum titanate},
author = {Lemziouka, H., E-mail: lemzioukahamane@gmail.com and LPMMAT, Faculté des Sciences Ain-Chock, Université Hassan II de Casablanca, 5366 Maârif and Omari, L. H. and LPTA, Department of Physics, Faculty of Sciences-DM, B.P. 1796 Fez-Atlas and Moubah, R. and Abid, M. and Lassri, H. and Sayouri, S.},
abstractNote = {Highlights: • The effect of Ce doping on the structural, dielectric properties and ac conductivity of Pb{sub 0.79-x}Ce{sub x}La{sub 0.21}TiO{sub 3} was studied. • A pseudo-cubic single phase was observed for all samples. • The phase transition temperature is found to decrease with increasing Ce content. • Change of the nature of Pb{sub 0.79}La{sub 0.21}TiO{sub 3} phase transition upon Ce-doping. • Several essential dielectric parameters were extracted. - Abstract: The influence of Ce doping on the structural, dielectric and ac conductivity properties of Pb{sub 0.79-x}Ce{sub x}La{sub 0.21}TiO{sub 3} powders (x = 0, 0.01, 0.03, 0.05 and 0.1) was investigated. X-ray diffraction shows that all samples have the pseudo-cubic crystal structure, in which the tetragonality and cell volume decrease with increasing Ce content. The change of the dielectric constant as a function of temperature demonstrates that the phase transition temperature decreases with the increase of Ce content. Normal behavior of the phase transition from ferroelectric to paraelectric was observed for Ce-doped samples, while the undoped powders exhibit a combination of diffuse phase transition and relaxor behaviors. From electrical conductivity versus 1/T plots, we have determined the activation energy, which was found to increase with increasing Ce concentration.},
doi = {10.1016/J.MATERRESBULL.2017.04.009},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = ,
volume = 92,
place = {United States},
year = {2017},
month = {8}
}