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2019 Fiscal Year Research-status Report

原子層物質を用いた高スピン偏極面直電流磁気抵抗素子の研究

Research Project

Project/Area Number 18K13985
Research InstitutionNational Institutes for Quantum and Radiological Science and Technology

Principal Investigator

李 松田  国立研究開発法人量子科学技術研究開発機構, 高崎量子応用研究所 先端機能材料研究部, 主任研究員(任常) (90805649)

Project Period (FY) 2018-04-01 – 2021-03-31
Keywordsホイスラー合金 / 高スピン偏極率材料 / 磁気抵抗素子 / グラフェン / 層状物質
Outline of Annual Research Achievements

今年度得られた研究成果は以下の通りです。
1.グラフェンとホイスラー合金の積層化に関する研究成果を取り纏めて、材料科学分野のトップ誌(Advanced Materials)で論文発表を行いました。また、今回の研究成果研に関するプレスリリースを行いました。
2.ホイスラー合金/グラフェン/ホイスラー合金の面直電流磁気抵抗素子の試作を行いました。ホイスラー合金/グラフェン/ホイスラー合金磁気抵抗素子は磁気再生ヘッドの応用に、最適な素子電気抵抗であることを確認しました。

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

ホイスラー合金/グラフェン/ホイスラー合金の面直電流磁気抵抗素子を試作した結果、素子が磁気再生ヘッドの応用に最適な素子抵抗を持つことを確認できたため。

Strategy for Future Research Activity

次年度はホイスラー合金トップ電極のスピン偏極率の増大に工夫することによって、低い素子電気抵抗と高い磁気抵抗比の高性能の磁気抵抗素子の実現を目指します。

Causes of Carryover

数千円の物品費精算の残額は次年度の物品費として使用します。

  • Research Products

    (10 results)

All 2020 2019 Other

All Int'l Joint Research (2 results) Journal Article (2 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results) Presentation (4 results) (of which Int'l Joint Research: 4 results,  Invited: 2 results) Remarks (1 results) Patent(Industrial Property Rights) (1 results)

  • [Int'l Joint Research] NUST MISIS(ロシア連邦)

    • Country Name
      RUSSIA FEDERATION
    • Counterpart Institution
      NUST MISIS
  • [Int'l Joint Research] Kyungpook National University(韓国)

    • Country Name
      KOREA (REP. OF KOREA)
    • Counterpart Institution
      Kyungpook National University
  • [Journal Article] Graphene/Half‐Metallic Heusler Alloy: A Novel Heterostructure toward High‐Performance Graphene Spintronic Devices2020

    • Author(s)
      S. Li, K. V. Larionov, Z. I. Popov, T. Watanabe, K. Amemiya, S. Entani, P. V. Avramov, Y. Sakuraba, H. Naramoto, P. B. Sorokin, and S. Sakai
    • Journal Title

      Advanced Materials

      Volume: 32 Pages: 1905734

    • DOI

      doi.org/10.1002/adma.202070043

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Non-chemical fluorination of hexagonal boron nitride by high-energy ion irradiation2020

    • Author(s)
      S. Entani,K. V. Larionov, Z. I. Popov, M. Takizawa, M. Mizuguchi, H. Watanabe, S. Li, H. Naramoto, P. B. Sorokin, and S. Sakai
    • Journal Title

      Nanotechnology

      Volume: 31 Pages: 125705

    • DOI

      doi.org/10.1088/1361-6528/ab5bcc

    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Fabrication and investigation of graphene/full Heusler alloy heterostructure for spintronics2019

    • Author(s)
      S. Li, K. V. Larionov, Z. I. Popov, S. Entani, K. Amemiya, P. V. Avramov, Y. Sakuraba, H. Naramoto, P. B. Sorokin, and S. Sakai
    • Organizer
      The 64th Annual Conference on Magnetism and Magnetic Materials
    • Int'l Joint Research
  • [Presentation] Synthesis and depth-resolved XMCD spectroscopic investigation of a novel graphene-Heusler alloy heterostructure2019

    • Author(s)
      S. Li, P. B. Sorokin, S. Entani, K. Amemiya, and S. Sakai
    • Organizer
      The 19th International Conference on Solid Films and Surfaces
    • Int'l Joint Research / Invited
  • [Presentation] Graphene/half-metal heterostructure for spintronics2019

    • Author(s)
      S. Li, K. V. Larionov, S. Entani, P. B. Sorokin, and S. Sakai
    • Organizer
      EMN2019
    • Int'l Joint Research / Invited
  • [Presentation] Growth and properties of novel graphene-based magnetic heterostructures for spintronic device applications2019

    • Author(s)
      S. Sakai, S. Li, and Y. Yamauchi
    • Organizer
      International conference Mechanisms and non-linear problems of nucleation and growth of crystals and thin films
    • Int'l Joint Research
  • [Remarks] プレスリリース:電子スピンを自在に操ることができる積層材料の開発に成功

    • URL

      https://www.qst.go.jp/site/press/35844.html

  • [Patent(Industrial Property Rights)] 積層構造、これを用いた磁気抵抗素子、及び積層構造の製造方法2020

    • Inventor(s)
      李松田、境誠司
    • Industrial Property Rights Holder
      量研
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      特願2020-052726

URL: 

Published: 2021-01-27  

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