Change of micro and macro symmetry of barium titanate single crystal around Curie temperature and its model

S. Wada, T. Suzuki, T. Noma, M. Osada, M. Kakihana

研究成果: Paper査読

2 被引用数 (Scopus)

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
ページ487-490
ページ数4
出版ステータスPublished - 1998 12 1
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 241998 8 27

Other

OtherProceedings of the 1998 11th IEEE International Symposium on Appliations of Ferroelectrics (ISAF-XI)
CityMontreaux, Switz
Period98/8/2498/8/27

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

フィンガープリント 「Change of micro and macro symmetry of barium titanate single crystal around Curie temperature and its model」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル