| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1532261 | Materials Science and Engineering: B | 2006 | 4 Pages |
Abstract
We have investigated the electrical properties of pulsed-laser deposited Bi3.25La0.75Ti3O12 (BLT) ferroelectric thin films. The obtained values of remanent polarization (2Pr) and coercive field (Ec) were 16 μC/cm2 and 84 kV/cm of BLT thin film, respectively. A strong low frequency dielectric dispersion (LFDD) has been observed above and below coercive voltage (Vc). A model was proposed to account for the observed phenomena, which fits very well to the dielectric dispersion relation: ε*=ε∞+iσ/ε0ω+(A{iω}n−1)/ε0ε*=ε∞+iσ/ε0ω+(A{iω}n−1)/ε0. The occurrence of an anomaly in n, σ, A, and ɛ∞ parameters near Vc indicates a coupling between the charge carriers and ferroelectricity.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Jong-Ho Park, Jeong-Bae Kim,