抄録
Using high-quality barium titanate single crystals, its microscopic and macroscopic symmetries were investigated by a Raman scattering and a polarizing microscope, respectively. Their temperature dependences were also studied through Curie temperature. The microscopic symmetry of P4mm observed at 21.7 °C did not change through Curie temperature. On the other hand, the macroscopic symmetry was P4mm below 133.0 °C while that was Pm3m above 133.0 °C. This difference between the microscopic and macroscopic symmetries above Curie temperature suggested that the barium titanate above 133.0 °C has intrinsically some disordered behavior. We proposed the model, that the flipping behavior of the polar vector can be origin of the disordered behavior.
| 本文言語 | English |
|---|---|
| ホスト出版物のタイトル | IEEE International Symposium on Applications of Ferroelectrics |
| 出版社 | IEEE |
| ページ | 487-490 |
| ページ数 | 4 |
| 出版ステータス | Published - 1998 |
| 外部発表 | はい |
| イベント | Proceedings of the 1998 11th IEEE International Symposium on Appliations of Ferroelectrics (ISAF-XI) - Montreaux, Switz 継続期間: 1998 8月 24 → 1998 8月 27 |
Other
| Other | Proceedings of the 1998 11th IEEE International Symposium on Appliations of Ferroelectrics (ISAF-XI) |
|---|---|
| City | Montreaux, Switz |
| Period | 98/8/24 → 98/8/27 |
ASJC Scopus subject areas
- 工学（全般）
- 材料科学（全般）