Publication: Effect of oxidizing atmosphere on the electrical properties of SrBi4Ti4O15 thin films obtained by the polymeric precursor method
Loading...
Date
Advisor
Coadvisor
Graduate program
Undergraduate course
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier B.V.
Type
Article
Access right
Acesso restrito
Abstract
Strontium bismuth titanate (SrBi4Ti4O15) thin films were deposited on (111) Pt/Ti/SiO2/Si Substrates by spin coating from the polymeric precursor method. Annealing in static air and dynamic oxygen atmosphere was performed at 700 degrees C for 2 h. The films were characterized by X-ray diffraction, atomic force microscopy and electric properties. The dielectric properties of SrBi4Ti4O15 films were found to be remarkably sensitive to the annealing atmosphere. The C-V characteristics of the metal-ferroelectric metal structure showed a typical butterfly loop that confirms the ferroelectric properties of the film related to the domains switching. SrBi4Ti4O15 thin films annealed in oxygen atmosphere showed lower ferroelectric behavior indicating a weak ferroelectricity along c-axis direction. Published by Elsevier Masson SAS.
Description
Keywords
Thin films, Atomic force microscopy, Dielectric properties
Language
English
Citation
Solid State Sciences. Amsterdam: Elsevier B.V., v. 10, n. 12, p. 1951-1957, 2008.
