Ferroelectric Instability and Dimensionality in Bi-Layered Perovskites and Thin Films
The dielectric and thermal properties of Bi (bismuth)-layered perovskite SrBi2Ta2O9 (SBT) are discussed in comparison with ferroelectric thin BaTiO3 films. Although these two perovskites exhibit quite a different nature, the dielectric properties of BaTiO3 thin film are similar to those in bulk SBT....
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Advances in Condensed Matter Physics |
| Online Access: | http://dx.doi.org/10.1155/2012/714625 |
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| author | Akira Onodera Masanori Fukunaga Masaki Takesada |
| author_facet | Akira Onodera Masanori Fukunaga Masaki Takesada |
| author_sort | Akira Onodera |
| collection | DOAJ |
| description | The dielectric and thermal properties of Bi (bismuth)-layered perovskite SrBi2Ta2O9 (SBT) are discussed in comparison with ferroelectric thin BaTiO3 films. Although these two perovskites exhibit quite a different nature, the dielectric properties of BaTiO3 thin film are similar to those in bulk SBT. The dielectric properties and pseudo-two-dimensional structure between SBT and thin film suggest that the bulk layered ferroelectric SBT is a good model of ultra-thin ferroelectric film with two perovskite layers, free from any misfit lattice strain with substrate and surface charge at the interface with electrodes. Based on the mechanism of ferroelectric phase transition of SBT, it seems plausible that the ferroelectric interaction is still prominent but shows a crossover from ferroelectric to antiferroelectric interaction in perovskite ultra-thin films along the tetragonal axis. |
| format | Article |
| id | doaj-art-e910d3d050f0409c85e5387b4bf38820 |
| institution | DOAJ |
| issn | 1687-8108 1687-8124 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Condensed Matter Physics |
| spelling | doaj-art-e910d3d050f0409c85e5387b4bf388202025-08-20T03:21:09ZengWileyAdvances in Condensed Matter Physics1687-81081687-81242012-01-01201210.1155/2012/714625714625Ferroelectric Instability and Dimensionality in Bi-Layered Perovskites and Thin FilmsAkira Onodera0Masanori Fukunaga1Masaki Takesada2Department of Physics, Hokkaido University, Sapporo 060-0810, JapanDepartment of Physics, Hokkaido University, Sapporo 060-0810, JapanDepartment of Physics, Hokkaido University, Sapporo 060-0810, JapanThe dielectric and thermal properties of Bi (bismuth)-layered perovskite SrBi2Ta2O9 (SBT) are discussed in comparison with ferroelectric thin BaTiO3 films. Although these two perovskites exhibit quite a different nature, the dielectric properties of BaTiO3 thin film are similar to those in bulk SBT. The dielectric properties and pseudo-two-dimensional structure between SBT and thin film suggest that the bulk layered ferroelectric SBT is a good model of ultra-thin ferroelectric film with two perovskite layers, free from any misfit lattice strain with substrate and surface charge at the interface with electrodes. Based on the mechanism of ferroelectric phase transition of SBT, it seems plausible that the ferroelectric interaction is still prominent but shows a crossover from ferroelectric to antiferroelectric interaction in perovskite ultra-thin films along the tetragonal axis.http://dx.doi.org/10.1155/2012/714625 |
| spellingShingle | Akira Onodera Masanori Fukunaga Masaki Takesada Ferroelectric Instability and Dimensionality in Bi-Layered Perovskites and Thin Films Advances in Condensed Matter Physics |
| title | Ferroelectric Instability and Dimensionality in Bi-Layered Perovskites and Thin Films |
| title_full | Ferroelectric Instability and Dimensionality in Bi-Layered Perovskites and Thin Films |
| title_fullStr | Ferroelectric Instability and Dimensionality in Bi-Layered Perovskites and Thin Films |
| title_full_unstemmed | Ferroelectric Instability and Dimensionality in Bi-Layered Perovskites and Thin Films |
| title_short | Ferroelectric Instability and Dimensionality in Bi-Layered Perovskites and Thin Films |
| title_sort | ferroelectric instability and dimensionality in bi layered perovskites and thin films |
| url | http://dx.doi.org/10.1155/2012/714625 |
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