Quantum paraelectric La1/2Na1/2TiO3 films as capacitor dielectrics for temperature- and electric-field-insensitive applications

被引:13
作者
Rao, RMV [1 ]
Munekata, H
Shimada, K
Lippmaa, M
Kawasaki, M
Inaguma, Y
Itoh, M
Koinuma, H
机构
[1] Tokyo Inst Technol, Imaging Sci & Engn Lab, Yokohama, Kanagawa 2268502, Japan
[2] Tokyo Inst Technol, Dept Innovat & Engn Mat, Yokohama, Kanagawa 2268502, Japan
[3] Tokyo Inst Technol, Mat & Struct Lab, Yokohama, Kanagawa 2268503, Japan
关键词
D O I
10.1063/1.1288776
中图分类号
O59 [应用物理学];
学科分类号
摘要
Thin films of La1/2Na1/2TiO3 fabricated by pulsed laser deposition show interesting dielectric properties exhibiting quantum paraelectric-type temperature-insensitive dielectric constant below 50 K. The dielectric constant (epsilon(r)similar to 180) is also very stable under electric bias up to 4x10(4) V/cm. These properties indicate that these films coupled with high temperature superconductors have a great potential for microwave applications. (C) 2000 American Institute of Physics. [S0021-8979(00)07618-0].
引用
收藏
页码:3756 / 3758
页数:3
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