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MnAs/III-V/MnAs heterostructures on (111)B for vertical spin devices

Research Project

Project/Area Number 21K04173
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 21060:Electron device and electronic equipment-related
Research InstitutionJapan Advanced Institute of Science and Technology

Principal Investigator

Akabori Masashi  北陸先端科学技術大学院大学, ナノマテリアルテクノロジーセンター, 准教授 (50345667)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2023: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2022: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords縦型スピンバルブデバイス / MnAs / InAs / 分子線エピタキシー / 縦型ゲートオールアラウンド
Outline of Research at the Start

半導体デバイス分野では高機能化・高集積化のため、縦型ゲートオールアラウンドFET(GAA-FET)が近年検討されている。スピンデバイスについても縦型GAAの検討は重要と考えられる。そこで本研究では、表面・基板側ともに強磁性体MnAsを有し、その間にIII-V半導体が挿入されたMnAs/III-V/MnAsヘテロ構造の結晶成長を行い、成長条件や膜厚・層構造に対する構造評価や電気・磁気特性評価を系統的に行う。さらに、それらヘテロ構造を利用して、縦型スピンデバイス作製技術の確立とデバイス特性評価を行い、特に縦型・短チャネル化によるスピン緩和抑制について検証する。

Outline of Final Research Achievements

This research focuses on MnAs/III-V/MnAs heterostructure growth and spin device application. We performed low-temperature growth of MnAs/InAs/MnAs heterostructures by molecular beam epitaxy, and then we performed fabrication and characterization of vertical type spin valve devices using the heterostructures. As a result, we clearly observed spin valve signals in various sizes of devices, and confirmed the spin valve peak field is independent of the device size. Moreover, with comparison to magnetization property of the heterostructure, we clarified that the spin valve behavior is realized by the difference of coercive fields between top and bottom MnAs layers that is our concept.

Academic Significance and Societal Importance of the Research Achievements

本研究成果は、MnAsとInAsとの組み合わによる半導体スピントロニクスにおいて、従来の横型素子だけでなく縦型素子での動作を示したものである。また、狙い通りではあるが、デバイスのサイズではなく、基板側と表面側のMnAs保磁力差によるスピンバルブ動作を明らかにしており、新たな知見を与えるものである。今後さらに研究を進めることで、スピン伝導の詳細や効率改善のメカニズムが明らかになると期待され、この材料系でのスピントロニクスの可能性が広がるものと思われる。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (22 results)

All 2024 2023 2022 2021

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (16 results) (of which Int'l Joint Research: 10 results,  Invited: 4 results)

  • [Journal Article] Low-temperature grown MnAs/InAs/MnAs double heterostructure on GaAs (111)B by molecular beam epitaxy2024

    • Author(s)
      Islam Md Tauhidul、Kabir Md Faysal、Akabori Masashi
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 63 Issue: 1 Pages: 01SP40-01SP40

    • DOI

      10.35848/1347-4065/ad01c5

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Incremental Analysis of Magnetic Domains in Multiple Types of Ferromagnetic CoFe Nanolayer Patterns2024

    • Author(s)
      Hara Shinjiro、Dai Wei、Horiguchi Ryoma、Kanetsuka Wataru、Akabori Masashi
    • Journal Title

      physica status solidi (b)

      Volume: 261 Issue: 3

    • DOI

      10.1002/pssb.202300529

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spin-filter device using the Zeeman effect with realistic channel and structure parameters2023

    • Author(s)
      Komatsu Soh、Akabori Masashi
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 63 Issue: 2 Pages: 02SP14-02SP14

    • DOI

      10.35848/1347-4065/ad0596

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Growth temperature dependence of MnSb synthesis on GaAs (111) B using molecular beam epitaxy2023

    • Author(s)
      Kabir Md Faysal、Islam Md Tauhidul、Komatsu Soh、Akabori Masashi
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 63 Issue: 1 Pages: 01SP37-01SP37

    • DOI

      10.35848/1347-4065/acffd1

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Tailoring Magnetic Domains and Magnetization Switching in CoFe Nanolayer Patterns with Their Thickness and Aspect Ratio on GaAs (001) Substrate2022

    • Author(s)
      Teramoto Keigo、Horiguchi Ryoma、Dai Wei、Adachi Yusuke、Akabori Masashi、Hara Shinjiro
    • Journal Title

      physica status solidi (b)

      Volume: 259 Issue: 4 Pages: 2100519-2100519

    • DOI

      10.1002/pssb.202100519

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Fabrication of Josephson junctions by single line etching of Nb thin films utilizing nitrogen-gas-field ion-source focused ion beam2022

    • Author(s)
      Sudo Shinya、Akabori Masashi、Uno Munenori
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 61 Issue: SB Pages: SB1016-SB1016

    • DOI

      10.35848/1347-4065/ac2ab4

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] Fabrication and Characterization of Vertical Spin Valve Devices Based on MnAs/InAs/MnAs/GaAs(111)B with several hundred nanometer width2024

    • Author(s)
      Thuan Van Pham, Md Tauhidul Islam, Soh Komatsu, Masashi Akabori
    • Organizer
      第71回応用物理学会春季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Molecular Beam Epitaxial Growth of MnSb, InSb and MnSb/InSb on GaAs (111) B for spin device application2024

    • Author(s)
      Faysal MD KABIR, Md Tauhidul Islam, Masashi Akabori
    • Organizer
      第71回応用物理学会春季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Growth and characterization of MnSb and InSb on GaAs (111)B using molecular beam epitaxy for spin-FET application2024

    • Author(s)
      Md. F. Kabir, M. Akabori
    • Organizer
      7th International Symposium on Frontiers in Materials Science
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] GaAs/InAs コアシェルナノワイヤを用いた スピンバルブデバイスの作製・評価2023

    • Author(s)
      田島 正啓、赤堀 誠志
    • Organizer
      令和5年度応用物理学会北陸・信越支部学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Fabrication and Measurement of Vertical Spin Valve Devices Based on MnAs/InAs/MnAs/GaAs(111)B2023

    • Author(s)
      Van Thuan Pham, Md. Tauhidul Islam, Masashi Akabori
    • Organizer
      令和5年度応用物理学会北陸・信越支部学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Lateral and Vertical Spin Valve Devices Using Molecular Beam Epitaxial Grown MnAs/InAs Hybrid Structures2023

    • Author(s)
      Md. T. Islam, T. V. Pham, Y Ma, M. Akabori
    • Organizer
      The 8th International Workshop on Nanotechnology and Application
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Molecular beam epitaxial growth of MnAs/InAs and MnSb/InSb hybrid structures for spintronic device applications2023

    • Author(s)
      Md. T. Islam, Md. F. Kabir, M. Akabori
    • Organizer
      The 4th International Workshop on Advanced Materials and Devices
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Magnetic Domain Analysis of CoFe/MgO Nanolayer Electrode Patterns for Spin-Injection into Semiconducting Nanowires2023

    • Author(s)
      S. Hara, M. Akabori
    • Organizer
      The International Conference on PROCESSING & MANUFACTURING OF ADVANCED MATERIALS Processing, Fabrication, Properties, Applications (THERMEC 2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Design of semiconductor spin-polarizer utilizing the Zeeman effect2023

    • Author(s)
      Soh Komatsu, Masashi Akabori
    • Organizer
      The 9th International Symposium on Organic and Inorganic Electronic Materials and Related Nanotechnologies
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Low-temperature grown MnAs/InAs/MnAs double heterostructure on GaAs (111)B by molecular beam epitaxy2023

    • Author(s)
      Md Tauhidul Islam, Masashi Akabori
    • Organizer
      The 9th International Symposium on Organic and Inorganic Electronic Materials and Related Nanotechnologies
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] H2SO4/H2O2 digital wet etching of GaAs and InAs for nanostructure fabrication2023

    • Author(s)
      Yingshu Ma, Masashi Akabori
    • Organizer
      The 9th International Symposium on Organic and Inorganic Electronic Materials and Related Nanotechnologies
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Growth temperature dependence of MnSb synthesis on GaAs (111)B using molecular beam epitaxy2023

    • Author(s)
      Md Faysal Kabir, Md Tauhidul Islam, Masashi Akabori
    • Organizer
      The 9th International Symposium on Organic and Inorganic Electronic Materials and Related Nanotechnologies
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Growth and Structural Properties of Low-temperature grown InAs/MnAs Hybrid Structure on GaAs (111)B2023

    • Author(s)
      Md Tauhidul Islam, Masashi Akabori
    • Organizer
      The 70th JSAP Spring Meeting 2023
    • Related Report
      2022 Research-status Report
  • [Presentation] Low Temperature Growth of InAs on GaAs (111)B2022

    • Author(s)
      Md Tauhidul Islam, Masashi Akabori
    • Organizer
      JSAP Hokuriku-Shinetsu Chapter Annual Meeting 2022
    • Related Report
      2022 Research-status Report
  • [Presentation] Fabrication of Josephson junctions by single line etching of Nb thin films utilizing nitrogen gas field ion source focused ion beam2021

    • Author(s)
      S. Sudo, M. Akabori, M. Uno
    • Organizer
      The 8th International Symposium on Organic and Inorganic Electronic Materials and Related Nanotechnologies
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Lattice relaxation around heterointerfaces in MnAs/GaAs/InAs/GaAs(111)B grown by molecular beam epitaxy2021

    • Author(s)
      W. Kanetsuka, M. Akabori, T. Chen, Y. Oshima
    • Organizer
      The 8th International Symposium on Organic and Inorganic Electronic Materials and Related Nanotechnologies
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research

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Published: 2021-04-28   Modified: 2025-01-30  

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