Spin current imaging by nanoprobes

• Project/Area Number: 26790047
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Thin film/Surface and interfacial physical properties
• Research Institution: Utsunomiya University
• Principal Investigator: Sakuma Hiroshi 宇都宮大学, 工学(系)研究科(研究院), 准教授 (40375522)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: スピン流 / ピエゾポジショナー / 表面電位 / イメージング / プローブ顕微鏡 / ピエゾ素子 / 圧電素子 / 電位分布

Outline of Final Research Achievements

We have set our sights on the nanoscale imaging of spin current by nanoprobes. In the duration of this project, following tasks were performed. A nanoprobe measurement system using piezo positioners was developed. A technique for the measurement of surface voltage was established. Techniques for the fabrication of metal microwires on semiconductor wafers and the crosses of metal microwires were established. The current path imaging of ferromagnetic nanoparticulate film was performed using the developed nanoprobe system. A magnetic field source with high stability and low heat generation was developed for the nanoprobe measurements.

Research Products

• [Journal Article] ナノプローブ磁気伝導計測システムの構築とFeナノ粒子膜における電流パスの可視化 (2017)
  • Author(s): 佐久間洋志，植野慎平，石井 清
  • Journal Title: 電気学会論文誌A Volume: 137
  • NAID: 130006839825
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] 電子ビーム蒸着による金属細線クロスの作製 (2017)
  • Author(s): 酒井奏，小暮恵介，佐久間洋志
  • Organizer: 第7回電気学会東京支部栃木・群馬支所合同研究発表会
  • Place of Presentation: 足利工業大学
  • Year and Date: 2017-03-02
• [Presentation] ナノポジショナーの粗動機構における自動較正プログラムの開発 (2017)
  • Author(s): 羽根田海生，植野慎平，渡邊浩平，佐久間洋志
  • Organizer: 第7回電気学会東京支部栃木・群馬支所合同研究発表会
  • Place of Presentation: 足利工業大学
  • Year and Date: 2017-03-02
• [Presentation] ナノプローブ磁気伝導計測システムの構築とFeナノ粒子膜における電流パスの可視化 (2016)
  • Author(s): 佐久間洋志，植野慎平，石井 清
  • Organizer: 平成28年電気学会基礎・材料・共通部門大会
  • Place of Presentation: 九州工業大学
  • Year and Date: 2016-09-05
• [Presentation] ピエゾポジショナーの粗動／微動同時制御 (2016)
  • Author(s): 植野慎平，渡邊浩平，佐久間洋志，石井 清
  • Organizer: 第6回電気学会東京支部栃木・群馬支所合同研究発表会
  • Place of Presentation: 前橋工科大学
  • Year and Date: 2016-03-01
• [Presentation] ナノプローブによるスピン流イメージングのための強磁性金属/半導体境界の検出 (2014)
  • Author(s): 岩間三典，渡辺浩平，佐久間洋志，石井 清
  • Organizer: 電気学会基礎・材料・共通部門大会
  • Place of Presentation: 信州大学
  • Year and Date: 2014-08-21
• [Remarks] a room at the bottom
  • URL: http://sakuhiro.way-nifty.com/