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

Interface structure and in-plane spin transport in MnAs/III-V-based heterostructures on (111)B

Research Project

Project/Area Number 18K04227
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 21050:Electric and electronic materials-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) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywordsスピン軌道結合 / MnAs/InAs / スピンバルブ素子 / 界面構造 / 面内スピン伝播 / 分子線エピタキシー / MnAs / InAs / 非局所
Outline of Final Research Achievements

We have studied MnAs/InAs heterostructures on GaAs(111)B for spin field-effect transistors based on hybrid structures consisting of semiconductor channel with large spin-orbit coupling and ferromagnetic metal electrodes. In the present study, we first found the enhancement of spin signals and injection efficiency in local and non-local spin valve devices by increasing measurement temperatures. Then we obtained the information of lattice relaxation around heterointerfaces by RHEED and STEM. Also we confirmed tunneling effect in vertical transport, and metal direct patterning by N2 GFIS-FIB.

Academic Significance and Societal Importance of the Research Achievements

本研究の成果は、将来の量子情報処理などを担う可能性がある、半導体をベースとしたスピンデバイスの実現に寄与するものである。本研究はナノテクノロジーをベースとしており、半導体InAs・GaAsと強磁性体MnAsを組み合わせた新構造の開発および構造評価や、新構造をもとにしたスピンデバイス開発および特性評価と多岐に渡っており、マテリアルサイエンス、ナノテクノロジー、スピントロニクスの発展にも貢献している。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (6 results)

All 2021 2020 2019 2018 Other

All Int'l Joint Research (2 results) Journal Article (2 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (2 results) (of which Invited: 1 results)

  • [Int'l Joint Research] CAC(アルゼンチン)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] CNRS(フランス)

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Anomalous Hall effect in MnAs: Intrinsic contribution due to Berry curvature2021

    • Author(s)
      Helman C.、Camjayi A.、Islam E.、Akabori M.、Thevenard L.、Gourdon C.、Tortarolo M.
    • Journal Title

      Physical Review B

      Volume: 103 Issue: 13

    • DOI

      10.1103/physrevb.103.134408

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Spin injection and detection in MnAs/GaAs/InAs hybrid system on GaAs(111)B through lateral non-local spin valve measurement at varied temperature2019

    • Author(s)
      Islam Md. Earul、Hayashida Kazuki、Akabori Masashi
    • Journal Title

      AIP Advances

      Volume: 9 Issue: 11 Pages: 115215-115215

    • DOI

      10.1063/1.5126242

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 分子線エピタキシーにより成長したMnAs/GaAs/InAs/GaAs(111)Bハイブリッド構造における界面周辺での格子緩和2020

    • Author(s)
      金塚渉 、赤堀誠志 、陳桐民 、大島義文
    • Organizer
      令和二年度 応用物理学会 北陸・信越支部 学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] MATERIALS STUDY FOR SPIN FIELD EFFECT TRANSISTORS USING MOLECULAR BEAM EPITAXY2018

    • Author(s)
      Masashi Akabori, Md. Earul Islam, Dat Quoc Tran
    • Organizer
      11th Scientific Conference of University of Science, Viet Nam National University Ho Chi Minh City
    • Related Report
      2018 Research-status Report
    • Invited

URL: 

Published: 2018-04-23   Modified: 2022-01-27  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi