• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Development of practical spintronic devices using Heusler alloy films

Research Project

Project/Area Number 16H07436
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Structural/Functional materials
Research InstitutionNational Institute for Materials Science

Principal Investigator

Nakatani Tomoya  国立研究開発法人物質・材料研究機構, 磁性・スピントロニクス材料研究拠点, 主任研究員 (60782646)

Research Collaborator Sasaki Taisuke  国立研究開発法人物質・材料研究機構, 磁性・スピントロニクス材料研究拠点, 主任研究員 (30615993)
Project Period (FY) 2016-08-26 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords巨大磁気抵抗 / 磁気センサ / ホイスラー合金 / スピントロニクス / 磁気センサー / ハーフメタル / 巨大磁気抵抗効果 / 磁気記録
Outline of Final Research Achievements

We developed Heusler alloy thin films with high spin polarization, which improve the sensitivity of magnetic field sensor. By increasing the chemical order of Heusler alloy and combining with suitable underlayer and spacer layer materials, we improved giant magnetoresistance ratio up to 50% from the previous record of ~20% using conventional materials. This achievement is promising for the applications to read sensors for hard disk drive and high-sensitive magnetic field sensors.

Report

(3 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Annual Research Report
  • Research Products

    (14 results)

All 2018 2017 2016

All Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results) Presentation (11 results) (of which Int'l Joint Research: 5 results,  Invited: 3 results)

  • [Journal Article] Enhancement of current-perpendicular-to-plane giant magnetoresistive outputs by improving B2-order in polycrystalline Co2(Mn0.6Fe0.4)Ge Heusler alloy films with the insertion of amorphous CoFeBTa underlayer2018

    • Author(s)
      S.Li, T.Nakatani, K.Masuda, Y.Sakuraba, X.D.Xu, T.T.Sasaki, H.Tajiri, Y.Miura, T.Furubayashi,K.Hono
    • Journal Title

      Acta Materiaria

      Volume: 142 Pages: 49-57

    • DOI

      10.1016/j.actamat.2017.09.046

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Advanced CPP-GMR Spin-Valve Sensors for Narrow Reader Applications2018

    • Author(s)
      T. Nakatani, S. Li, Y. Sakuraba, T. Furubayashi, K. Hono
    • Journal Title

      IEEE Transactions on Magnetics

      Volume: 54 Issue: 2 Pages: 3300221-3300221

    • DOI

      10.1109/tmag.2017.2753221

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Read sensor technology for ultrahigh density magnetic recording2018

    • Author(s)
      Tomoya Nakatani , Zheng Gao , and Kazuhiro Hono
    • Journal Title

      MRS Bulletin

      Volume: 43 Issue: 2 Pages: 106-111

    • DOI

      10.1557/mrs.2018.3

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] CPP-GMR spin-valves with AgSn/InZnO spacers2018

    • Author(s)
      中谷友也
    • Organizer
      応用物理学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Large magnetoresistive outputs in Heusler alloy-based CPP-GMR sensors using with AgInZnO spacers2018

    • Author(s)
      中谷友也
    • Organizer
      Intermag 2018
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] (仮タイトル)Progress on Heusler alloy-based CPP-GMR read sensors2018

    • Author(s)
      中谷友也
    • Organizer
      TMRC 2018
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Microscopic origins of enhanced output of Heusler alloy CPP-GMR readers by amorphous underlayer and conductive oxide spacer2017

    • Author(s)
      中谷友也
    • Organizer
      TMRC 2017
    • Place of Presentation
      つくば国際会議場(茨城県、つくば市)
    • Year and Date
      2017-08-02
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Layer thickness effects and microstructure of CPP-GMR spin-valves with Ag/InZnO/Zn conductive oxide-based spacer layers2017

    • Author(s)
      中谷友也
    • Organizer
      Intermag 2017
    • Place of Presentation
      ダブリン(アイルランド)
    • Year and Date
      2017-04-24
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Enhanced CPP-GMR effect by improved B2-oreder of Co2(Mn0.6Fe0.4)Ge Heusler layer deposited on CoFeBTa amorphous underlayer2017

    • Author(s)
      中谷友也
    • Organizer
      Intermag 2017
    • Place of Presentation
      ダブリン(アイルランド)
    • Year and Date
      2017-04-24
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effects of layer thickness and microstructure of CPP-GMR with Ag / InZnO / Zn spacer2017

    • Author(s)
      中谷友也
    • Organizer
      応用物理学会
    • Place of Presentation
      パシフィコ横浜(神奈川県、横浜市)
    • Year and Date
      2017-03-14
    • Related Report
      2016 Annual Research Report
  • [Presentation] ホイスラー合金 CPP-GMR 再生ヘッドセンサーの開発2017

    • Author(s)
      中谷友也
    • Organizer
      応用物理学会
    • Place of Presentation
      パシフィコ横浜(神奈川県、横浜市)
    • Year and Date
      2017-03-14
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Ag/InZnO/Zn スペーサー層をもつ CPP-GMR スピンバルブの微細構造と磁気抵抗特性2017

    • Author(s)
      中谷友也
    • Organizer
      日本磁気学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 多結晶ホイスラー合金薄膜の化学規則度とCPP-GMR特性2017

    • Author(s)
      中谷友也
    • Organizer
      日本金属学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 多結晶ホイスラー合金薄膜CPP-GMR素子の作製2016

    • Author(s)
      中谷友也
    • Organizer
      日本磁気学会
    • Place of Presentation
      金沢大学(石川県、金沢市)
    • Year and Date
      2016-09-05
    • Related Report
      2016 Annual Research Report

URL: 

Published: 2016-09-02   Modified: 2019-03-29  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi