2018年1月1日
High-pressure synthesis and structures of perovskite-type oxyfluorides
Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu
- ,
- ,
- ,
- 巻
- 28
- 号
- 3
- 開始ページ
- 193
- 終了ページ
- 205
- DOI
- 10.4131/jshpreview.28.193
© 2018, Japan Society of High Pressure Science and Technology. All rights reserved. In this article, our recent researches on the crystal structure of the perovskite-type oxyfluorides were reviewed. Parts of these compounds were synthesized using the cubic-multi-anvil type high-pressure apparatus. In cubic oxyfluorides, the displacement from ideal positions of an anion or a cation was observed and the ion species displaced depended on the tolerance factor. The oxyfluorides containing Pb and/or Mn ions had a tetragonal structure and PbMnO2F containing both ions exhibit very high tetragonality (c/a=1.10). In addition, the solid solutions between a perovskite-type oxide and an oxyfluoride or a fluoride were synthesized using high-pressure apparatus. As the result, it was revealed that one of these solid solutions, (1-x)BaTiO3-xKTiO2F represented unique structures and interesting dielectric properties.
- リンク情報
- ID情報
-
- DOI : 10.4131/jshpreview.28.193
- ISSN : 0917-639X
- eISSN : 1348-1940
- SCOPUS ID : 85055680636