Evaluation of Superconducting Junctions with Magnetic Point and Fundamental Study for Three Terminal Devices

磁点超导结评估及三端器件基础研究

• 批准号: 21560372
• 负责人: NAKAYAMA Akiyoshi
• 金额: $ 3.24万
• 依托单位: Kanagawa University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21560372/
• 关键词: 超伝導; 磁性体; 三端子素子; 磁界制御; 点状磁性体; 異種接合; 超伝導電流; ヒステリシス特性

We are able to deposit the nickel thin films by magnetron sputtering in high vacuum system. The niobium/oxide-barrier/nickel/niobium sandwich structure was obtained by connecting the sputtering chambers using vacuum tunnel in which samples can be carried from one chamber to another without breaking the vacuum. We also measured the Josephson current and finite voltage steps of the superconducting junctions and evaluated the two-dimensional magnetic field dependence of these steps.

我们能够在高真空系统中用磁控溅射法沉积镍薄膜。利用真空隧道将溅射室连接起来，得到了Nb/氧化物阻挡层/镍/Nb夹层结构，样品可以在不破坏真空度的情况下从一个室带到另一个室。我们还测量了超导结的约瑟夫森电流阶梯和有限电压阶梯，并对这些阶梯的二维磁场依赖性进行了评估。

项目成果

Measurement of Magnetic Field near the Superconducting Film Using 2-Dimensinal Magnetic Field Dependence of Josephson Current through Niobium Tunnel Junction Sensor

通过铌隧道结传感器利用约瑟夫森电流的二维磁场依赖性测量超导薄膜附近的磁场

• 期刊: Journal of Applied Physics
• 影响因子: 3.2
• 作者: A.Nakayama;S;Abe;N.Watanabe;Y.Okabe
• 通讯作者: Y.Okabe

Measurement of trapped flux magnetic field near the superconducting film by the dependence of superconducting current through a Josephson junction sensor

通过约瑟夫森结传感器通过超导电流的依赖性来测量超导薄膜附近的俘获通量磁场

• 发表时间: 2010
• 期刊: Journal of Physics conference series
• 作者: Akiyoshi Nakayama;Yohei Nishi;Norimichi Watanabe;Susumu Abe and Yoichi Okabe
• 通讯作者: Susumu Abe and Yoichi Okabe

Modulation of Josephson Current through Nb Junctions by Three-dimensional Scan of External Magnetic Field

外部磁场三维扫描对铌结约瑟夫森电流的调制

• 发表时间: 2009
• 作者: Akiyoshi Nakayama;Norimichi Watanabe;Susumu Abe;Yohei Nishi;Koji Masuda.
• 通讯作者: Koji Masuda.

"Modulation of Josephson Current through Nb Junctions by Three-dimensional Scan of External Magnetic Field" International Superconductive Electronics Conference 2009, TD-P12

“外部磁场三维扫描通过 Nb 结调制约瑟夫森电流”2009 年国际超导电子会议，TD-P12

• 发表时间: 2009
• 作者: A.Nakayama;N.Watanabe;S.Abe;Y;Nishi;K;Masuda
• 通讯作者: Masuda

Measurement of perpendicular magnetic field dependence of the Josephson current by a three-dimensional scan of the external magnetic field

通过外部磁场的三维扫描测量约瑟夫森电流的垂直磁场依赖性

• 发表时间: 2010
• 期刊: Journal of Physics conference series
• 作者: Norimichi Watanabe;Akiyoshi Nakayama;Susumu Abe and Koji Masuda
• 通讯作者: Susumu Abe and Koji Masuda