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Development of a method for control and observation of domain walls in a micro-fabricated ferromagnet

Research Project

Project/Area Number 19710084
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Nanostructural science
Research InstitutionKumamoto University (2008)
The Institute of Physical and Chemical Research (2007)

Principal Investigator

HARA Masahiro  Kumamoto University, 大学院・自然科学研究科, 准教授 (50392080)

Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥3,450,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥450,000)
Fiscal Year 2008: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2007: ¥1,500,000 (Direct Cost: ¥1,500,000)
Keywords微小磁性体 / 磁壁 / 超伝導体 / 半導体二次元電子ガス / 磁束量子 / 有機分子 / 金属ナノ接点 / マイスナー効果 / 量子化磁束
Research Abstract

1ミクロン以下の微小磁石における磁化構造の制御及び観測手法に関する研究を行った。非常に短い時間(ナノ秒程度)のパルス磁場を用いたり、超伝導体を微小磁石に近接させたりすることにより、微小磁石を制御する新しい知見を得ることができた。また、半導体微小素子の抵抗変化を用いることで、微小磁石における磁化構造の変化を高感度に検出する手法を確立した。

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (15 results)

All 2009 2008 2007 Other

All Journal Article (6 results) (of which Peer Reviewed: 4 results) Presentation (7 results) Remarks (2 results)

  • [Journal Article] Magnetic Interaction in a Submicron Ferromagnetic Disk/Supercnduct or Hybrid2008

    • Author(s)
      Masahiro Hara, Takashi Kimura, Yoshichika Otani
    • Journal Title

      Physics Reports of Kumamoto University Vol.13

      Pages: 107-114

    • Related Report
      2008 Final Research Report
  • [Journal Article] Detection of paired domainwalls in a ferromagnetic ring by a bend resistance measurement2008

    • Author(s)
      Masahiro Hara, Takashi Kimura, Yoshichika Otani
    • Journal Title

      Physica E Vol.40

      Pages: 1108-1110

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Magnetic Interaction in a Submicron Ferromagnetic Disk/Superconductor Hybrid2008

    • Author(s)
      Masahiro Hara
    • Journal Title

      Physics Reports of Kumamoto University 13

      Pages: 107-114

    • NAID

      110006967814

    • Related Report
      2008 Annual Research Report
  • [Journal Article] Controlled depinning of pai red domain walls in a ferromagnetic ring circuit2007

    • Author(s)
      Masahiro Hara, Takashi Kimura, Yoshichika Otani
    • Journal Title

      Appl. Phys. Lett. Vol.90

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Controlled depinning of domain walls in a ferromagnetic ring circuit2007

    • Author(s)
      M. Hara
    • Journal Title

      Appl. Phys. Lett. 90

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Detection of paired domain walls in a ferromagnetic ring by a bend resistance measurement

    • Author(s)
      M. Hara
    • Journal Title

      Physica E (in press)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] 微小磁性体/超伝導体複合構造における磁気的相互作用2009

    • Author(s)
      原正大
    • Organizer
      第9回リサーチコア研究会
    • Place of Presentation
      九州大学
    • Year and Date
      2009-03-05
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] 微小磁性体/超伝導体複合構造における磁気的相互作用の検出2008

    • Author(s)
      原正大
    • Organizer
      第6回火の国研究会
    • Place of Presentation
      熊本大学
    • Year and Date
      2008-12-13
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] 磁気ディスク/超伝導体複合構造における磁気的相互作用2007

    • Author(s)
      原正大
    • Organizer
      日本物理学会第62回年次大会
    • Place of Presentation
      北海道大学
    • Year and Date
      2007-09-22
    • Related Report
      2008 Final Research Report 2007 Annual Research Report
  • [Presentation] 微小磁気リングにおける対磁壁のパルス磁場制御2007

    • Author(s)
      原正大
    • Organizer
      第31回応用磁気学会学術講演会
    • Place of Presentation
      学習院大学
    • Year and Date
      2007-09-14
    • Related Report
      2008 Final Research Report 2007 Annual Research Report
  • [Presentation] 微小磁性体/超伝導体複合構造における磁化過程2007

    • Author(s)
      原正大
    • Organizer
      第45回茅コンファレンス
    • Place of Presentation
      長野
    • Year and Date
      2007-08-20
    • Related Report
      2008 Final Research Report 2007 Annual Research Report
  • [Presentation] Detection of paired do main walls in a ferromagnetic ring by a bend resistance measurement2007

    • Author(s)
      Masahiro Hara
    • Organizer
      17th International Conference on Electronic Properties of Two-Dimensional Systems(EP2DS-17)
    • Place of Presentation
      Genova, Italy
    • Year and Date
      2007-07-16
    • Related Report
      2008 Final Research Report
  • [Presentation] Detection of paired domain walls in a ferromagnetic ring by a bend resistance measurement2007

    • Author(s)
      M. Hara
    • Organizer
      17th International Conference on Electronic Properties of Two-Dimensional Systems (EP2DS-17)
    • Place of Presentation
      Genova, Italy
    • Related Report
      2007 Annual Research Report
  • [Remarks] ホームページ等

    • URL

      http://www.riken.jp/lab-www/nanomag/indexjpn.html

    • Related Report
      2008 Final Research Report
  • [Remarks]

    • URL

      http://www.riken.jp/lab-www/nanomag/indexjpn.html

    • Related Report
      2007 Annual Research Report

URL: 

Published: 2007-04-01   Modified: 2016-04-21  

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