Skip to main content
padlock icon - secure page this page is secure

New Gadolinium Based Ferroelectric Phases Derived from the Tetragonal Tungsten Bronze (TTB)

Buy Article:

$60.00 + tax (Refund Policy)

Substitution of Pb with Gd in the Pb2KNb5O15 phases leads to a new composition of solid solution with chemical composition Pb2(1 − x)GdxK1 + xNb5O15 (0 ≤ x ≤ 1) which crystallizes with TTB type structure. Powders are pressed and heated into ceramics and their compaction is about 90%. Thermal evolution of the real part of the dielectric permittivity presents different behavior according to the composition. The dielectric permittivity of compounds with Gd composition above x = 0.30 shows two anomalies. The first one appears at TC and is associated to the ferroelectric-paraelectric phase transition. The origin of the last one at which occurs at T1 is up to now unknown. Domain structure should exhibit strong changes both with temperature and composition.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Keywords: Niobate; domains; ferroelectric; phase transition; solid solution

Document Type: Research Article

Affiliations: 1: Faculty of Sciences, University Cadi Ayyad, Laboratory of Mineral Solid State Chemistry, Bd. My Abdallah, B.P. 2390, Marrakech (Morocco) 2: Faculty of Sciences and Technics, University Cadi Ayyad, B.P. 549, Marrakech (Morocco) 3: University of Toulon and Var, L2MP(UMR CNRS 6137), 83957 La Garde, France

Publication date: January 1, 2003

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more