High-pressure synthesis, dielectric and magnetic properties for A-site ordered perovskite oxides

A位有序钙钛矿氧化物的高压合成、介电和磁性能

• 批准号: 23750245
• 负责人: MORI Mori
• 金额: $ 1.83万
• 依托单位: Gakushuin University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23750245/
• 关键词: セラミックス; 高圧合成; 誘電性; ペロブスカイト型酸化物

The solid solutions based on CaCu3Ti4O12were successfully synthesized by high-pressure synthesis. With increasing an amount of doping ion the A-O and Cu-O bond length increased systematically and the dielectric constant at room temperature decreased significantly. On the other hand, the magnetic susceptibility for all sample in the CaCu3Ti4O12solid solutions showed antiferromagnetic behavior. High-pressure synthesis of another A-site ordered perovskite type oxides, AA’3Ti4O12, was performed under 3-7.5 GPa. A novel perovskite oxide was successfully obtained. Itsrelationship between composition and physical properties will be investigated.

采用高压合成法成功合成了基于CaCu3Ti4O12的固溶体。随着掺杂离子量的增加，A-O和Cu-O键长系统性增加，室温介电常数显着降低。另一方面，CaCu3Ti4O12固溶体中所有样品的磁化率均表现出反铁磁行为。另一种 A 位有序钙钛矿型氧化物 AA’3Ti4O12 在 3-7.5 GPa 下进行高压合成。 A novel perovskite oxide was successfully obtained.将研究其成分与物理性质之间的关系。

项目成果

A サイト秩序型ペロブスカイト酸化物 SrCu3Ti4O12 の高圧合成、構造、磁性、誘電性

A位有序钙钛矿氧化物SrCu3Ti4O12的高压合成、结构、磁性和介电性能

• 作者: 森大輔;下井学;加藤雄二;勝又哲裕;開康一;高橋利宏;稲熊宜之
• 通讯作者: 稲熊宜之

High-pressure synthesis, structure and dielectric properties for A-site ordered perovskite type titanium oxides

A位有序钙钛矿型钛氧化物的高压合成、结构及介电性能

• 发表时间: 2012
• 作者: T. Teranishi;K. Shimizu;H. Hayashi;and A. Kishimoto;Daisuke Mori
• 通讯作者: Daisuke Mori