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The effect of Eu substitution on the ferroelectric properties of Bi4Ti3O12 thin films prepared by metal-organic decomposition
- Issue Date
- Dec-2002
- Publisher
- ELSEVIER SCIENCE SA
- Keywords
- ferroelectric properties; dielectric properties; metal-organic decomposition (MOD); electrical properties and measurements
- Citation
- THIN SOLID FILMS, v.422, no.1-2, pp 230 - 234
- Pages
- 5
- Journal Title
- THIN SOLID FILMS
- Volume
- 422
- Number
- 1-2
- Start Page
- 230
- End Page
- 234
- ISSN
- 0040-6090
1879-2731
- Abstract
- The effect of europium substitution on the ferroelectric properties of Bi4Ti3O12 thin films has been investigated. Ferroelectric europium-substituted Bi4Ti3O12 thin films were fabricated by spin-coating onto a Pt/Ti/SiO2/Si substrate. The structure and morphology of the films were analyzed using X-ray diffraction and scanning electron microscopy, respectively. After annealing at 750 degreesC, Bi3.25Eu0.75Ti3O12 (BET) films become crystallized and exhibit a polycrystalline structure. The BET thin films showed a large remanent polarization (2P(r)) of 60.99 muC/cm(2) at an applied voltage of 10 V. The BET thin films exhibited no significant degradation of switching charge for at least up to 5 X 10(9) switching cycles at a frequency of 50 kHz. (C) 2002 Elsevier Science B.V All rights reserved.
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