inexpensive preparation of superconducting films by ALL-MOD method and application to the intrinsic junction and interface controlled junction of the films

ALL-MOD方法廉价制备超导薄膜及其在薄膜本征结和界面控制结中的应用

• 批准号: 20560019
• 负责人: UCHIYAMA Tetsuji
• 金额: $ 2.91万
• 依托单位: Miyagi University of Education
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20560019/
• 关键词: 酸化物高温超伝導体; 塗布熱分解法; 有機金属分解法; 薄膜; 固有ジョセフソン接合; 超伝導トンネル接合; ジョセフソン接合

The high temperature oxide superconducting films are usually prepared by the sputtering and so on using expensive and large-scale apparatus. We have studied inexpensive preparation methods by using metal organic decomposition (MOD). After Bi_2Sr_2CaCu_2O_<8+x> (Bi-2212) thin films were prepared by the MOD method with the use of a commercial metal organic (MO) solution, we studied a preparation method using original suspensions as the solutions. Finally, Bi-2212 thin films prepared by using the original suspensions showed superconductivity, the intrinsic junction by a mesa structure, and a flatness indicating an ability of a interface junction.

高温氧化物超导薄膜通常采用溅射等方法，使用昂贵的大型设备来制备。我们研究了利用金属有机分解（MOD）的廉价制备方法。采用市售金属有机(MO)溶液，采用MOD法制备Bi_2Sr_2CaCu_2O_<8+x>(Bi-2212)薄膜后，研究了以原始悬浮液为溶液的制备方法。最后，使用原始悬浮液制备的Bi-2212薄膜显示出超导性、台面结构的本征结以及表明界面结能力的平坦度。

项目成果

塗布溶融法によるBi-2212厚膜の作製

涂覆熔融法制备Bi-2212厚膜

• 发表时间: 2011
• 作者: K.Umezawa;E. Narihiro;Y. Ohira;M. Yohimura;内山哲治,大竹佑樹
• 通讯作者: 内山哲治,大竹佑樹