Ferroelectric phase transitions and electroconducting properties of ceramic BIMEVOX solid solutions (Me = La, Zr)

Ceramic solid solutions Bi4(V1-xZrx)2O11-z (I), (Bi1-yLay)4V2O11-z (II) and (Bi1-yLay)4(V0.96Zr0.05)2O11-z (III) with x < 0.30, y < 0.20, were prepared by the solid state reaction method and were investigated by means of various experimental techniques. The low temperature ferroelectric α-phase exists in the solid solutions with x, y ≤ 0.05. The phase transition to paraelectric β-phase was revealed in these compositions by the dielectric spectroscopy, SHG and DTA/DSC methods. Dielectric permittivity measurements confirmed an effect of the domain walls "pinning" due to the presence of oxygen vacancies inherent to the bismuth vanadate based structures. Switching of ferroelectric domains by an external electric field was observed in Piezoresponse Force Microscopy experiments. Copyright © Taylor & Francis Group, LLC.

Authors
Politova E.D. 1 , Fortalnova E.A. 1, 2 , Kaleva G.M.1 , Mosunov A.V.1 , Safronenko M.G. 2 , Venskovskii N.U. 2 , Shvartsman V.V.3 , Kleemann W.3
Journal
Ferroelectrics
Publisher
Taylor and Francis Inc.
Number of issue
1 PART 3
Language
English
Pages
3-11
Status
Published
DOI
10.1080/00150190903001045
Volume
391
Year
2009
Organizations
  • 1 Karpov Institute of Physical Chemistry, Vorontsovo pole, 10, 105064, Moscow, Russian Federation
  • 2 Peoples' Friendship University of Russia, Ordzhonikidze st., 3, 117198, Moscow, Russian Federation
  • 3 University of Duisburg-Essen, Duisburg, Germany
Keywords
BIMEVOX; Domain switching; Ferroelectric phase transition; Ionic conductivity
Date of creation
19.10.2018
Date of change
19.10.2018
Short link
https://repository.rudn.ru/en/records/article/record/2884/
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