Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1595913 | Solid State Communications | 2008 | 4 Pages |
Abstract
A novel four-layer Bi5FeTi3O15(BFTO) compound was synthesized via sintering the mixture of Fe2O3, Bi2O3 oxides and already-prepared Bi4Ti3O12 powders. At room temperature, the remnant polarization (2Pr)(2Pr) and the coercive field (2Ec)(2Ec) of Bi5FeTi3O15 samples were about 11.8 μC/cm2 and 270 kV/cm, respectively. The BFTO samples show a weak ferromagnetism with Mr≈1.36×10−6emu/g. A sharp dielectric peak was found, showing that the arrangement of iron ions in each crystal unit may be relatively in order. Two peaks were found in the tanδ−Ttanδ−T curves. The peak at lower temperature (∼400 ∘C) behaves relaxation characteristic, with the activation energy (H)(H) of about 1.62 eV and the upper peak is frequency independent.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
X.Y. Mao, W. Wang, X.B. Chen,