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Magnetic metamaterials created by high-energy heavy ion irradiation, and topological magnonics

Research Project

Project/Area Number 21H04643
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 28:Nano/micro science and related fields
Research InstitutionJapan Atomic Energy Agency

Principal Investigator

Ieda Jun'ichi  国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 原子力科学研究所 先端基礎研究センター, 研究主幹 (20463797)

Co-Investigator(Kenkyū-buntansha) 針井 一哉  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 量子機能創製研究センター, 主任研究員 (00633900)
佐藤 奈々  国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 原子力科学研究所 先端基礎研究センター, 研究職 (10867112)
日置 友智  東京大学, 大学院工学系研究科(工学部), 助教 (10898042)
Project Period (FY) 2021-04-05 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥43,550,000 (Direct Cost: ¥33,500,000、Indirect Cost: ¥10,050,000)
Fiscal Year 2023: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2022: ¥12,480,000 (Direct Cost: ¥9,600,000、Indirect Cost: ¥2,880,000)
Fiscal Year 2021: ¥28,600,000 (Direct Cost: ¥22,000,000、Indirect Cost: ¥6,600,000)
Keywordsメタマテリアル / 磁性絶縁体 / マグノン / 重イオンビーム / マグノニクス / スピントロニクス / スピン格子結合 / スピン波 / 重イオン照射 / マスクパターニング / 保磁力 / パーコレーション
Outline of Research at the Start

放射線を用いて磁気メタマテリアルを作製し、マグノニクスにおける機能材料としての有益性を実験・理論の両面から検証する。これにより、電気的な損失を伴わない磁気論理回路や室温でのマグノン量子伝導現象研究への道が大きく拓かれる。スピン流物理研究の知見と、放射線を用いて酸化物材料の構造変成を研究する実験手法、及び磁気メタマテリアルの特性評価に最適なスピン波トモグラフィー法などの測定手法を組み合わせることで、磁気メタマテリアルのプロトタイプを世界に先駆け創出する。

Outline of Final Research Achievements

When a single-crystal thin film of a magnetic insulator is irradiated with a high-energy heavy ion beam the atoms along the beam track are stripped of their electrons and instantaneously heated, causing them to become amorphous. By combining this property with a mask patterning method using photolithography, a magnon conduction circuit will be created. The magnetic insulators targeted will be the oxide ferrimagnetic material yttrium iron garnet (Y3Fe5O12, YIG), and similar materials, which have low magnetic loss and magnetic transition temperatures above room temperature. This research establishes a method for fabricating clear magnetic/non-magnetic boundaries and evaluate the magnon propagation characteristics, thereby creating a research foundation for realizing magnetic metamaterials.

Academic Significance and Societal Importance of the Research Achievements

放射線の応用を目的とした原子力工学と磁性体を舞台としたスピン伝導を対象とするスピントロニクスという異なる研究分野の融合で、世界に先駆けて「トポロジカルマグノニック結晶」を実現するための革新的な手段の開発が促進され、新たな学術分野を開拓する基盤が形成される。これにより、自然界には存在しない物性や有用な機能を発現する「メタマテリアル」を作り出す試みに大きく貢献できる。機能性酸化物材料の2次元微細加工技術が誕生すれば世界初であり、将来的に半導体素子の基本であるMOS構造にも一大転換がもたらされる可能性を秘める。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Comments on the Screening Results   Annual Research Report
  • Research Products

    (20 results)

All 2024 2023 2022 2021 Other

All Journal Article (6 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 6 results,  Open Access: 4 results) Presentation (12 results) (of which Int'l Joint Research: 8 results,  Invited: 3 results) Remarks (1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Inelastic neutron scattering study of magnon excitation by ultrasound injection in yttrium iron garnet2024

    • Author(s)
      Shamoto Shin-ichi、Akatsu Mitsuhiro、Chang Lieh-Jeng、Nemoto Yuichi、Ieda Jun'ichi
    • Journal Title

      Applied Physics Letters

      Volume: 124 Issue: 11

    • DOI

      10.1063/5.0189768

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Emergence of Inductance and Capacitance from Topological Electromagnetism2023

    • Author(s)
      Araki Yasufumi、Ieda Jun’ichi
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 92 Issue: 7 Pages: 074705-074705

    • DOI

      10.7566/jpsj.92.074705

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Magnetic Hysteresis Induction with Nanocolumnar Defects in Magnetic Insulators2023

    • Author(s)
      Harii Kazuya、Umeda Maki、Arisawa Hiroki、Hioki Tomosato、Sato Nana、Okayasu Satoru、Ieda Jun’ichi
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 92 Issue: 7 Pages: 073701-073701

    • DOI

      10.7566/jpsj.92.073701

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Magnetic hysteresis induction with nanocolumnar defects in magnetic insulators2023

    • Author(s)
      K. Harii, M. Umeda, H. Arisawa, T. Hioki, N. Sato, S. Okayasu, and J. Ieda
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: -

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The damage analysis for irradiation tolerant spin-driven thermoelectric device based on single-crystalline Y3Fe5O12/Pt heterostructures2022

    • Author(s)
      Ieda Jun'ichi、Okayasu Satoru、Harii Kazuya、Kobata Masaaki、Yoshii Kenji、Fukuda Tatsuo、Ishida Masahiko、Saitoh Eiji
    • Journal Title

      IEEE Transactions on Magnetics

      Volume: 31 Issue: 8 Pages: 1-1

    • DOI

      10.1109/tmag.2022.3145888

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Magnetic Bragg peak enhancement under ultrasound injection2022

    • Author(s)
      Shamoto Shin-ichi、Akatsu Mitsuhiro、Matsuura Masato、Ohira-Kawamura Seiko、Harii Kazuya、Ono Masao、Chang Lieh-Jeng、Ito Takashi U.、Nemoto Yuichi、Ieda Jun'ichi
    • Journal Title

      Physical Review Research

      Volume: 4 Issue: 1 Pages: 013245-013245

    • DOI

      10.1103/physrevresearch.4.013245

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Inductance and capacitance emerging from topological electromagnetism2024

    • Author(s)
      Y. Araki, J. Ieda
    • Organizer
      CEMS Symposium on Emergent Quantum Materials 2024
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高速重イオン照射によるマグノニクスデバイス作製法の開発2024

    • Author(s)
      針井一哉
    • Organizer
      東海・重イオン科学シンポジウム ―タンデム加速器成果報告会―
    • Related Report
      2023 Annual Research Report
  • [Presentation] Emergent inductance by dynamical ferromagnetic nanostructures2023

    • Author(s)
      J. Ieda
    • Organizer
      13th International Conference on Metamaterials, Photonic Crystals and Plasmonics (META 2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Emergent inductance in ferromagnetic nanostructures2023

    • Author(s)
      J. Ieda
    • Organizer
      IEEE International Magnetics Conference 2023 (INTERMAG 2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Inductance and capacitance emerged from topological electromagnetism2023

    • Author(s)
      Y. Araki, J. Ieda
    • Organizer
      IEEE International Magnetics Conference 2023 (INTERMAG 2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Modification of magnetic properties in garnets caused by swift ion beam irradiation2023

    • Author(s)
      K. Harii
    • Organizer
      Quantum Beams Study of the Dynamics of Rare Earth Garnets
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Magnetic hysteresis induction in lutetium-iron garnet caused by swift-ion-beam irradiation2023

    • Author(s)
      K. Harii, M. Umeda, H. Arisawa, T. Hioki, N. Sato, S. Okayasu, T. Ohshima, J. Ieda
    • Organizer
      21st International Conference on Radiation Effects in Insulators
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高速イオンビームによる磁性絶縁体の照射試験と局所変調2023

    • Author(s)
      家田 淳一
    • Organizer
      岩手大学スピントロニクスワークショップ 2023
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Irradiation tolerance of spin-driven thermoelectric device based on Y3Fe5O12/Pt heterostructures2022

    • Author(s)
      J. Ieda, S. Okayasu, A. Takeyama, K. Harii, T. Ohshima, M. Ishida, and E. Saitoh
    • Organizer
      the 24th International Colloquium on Magnetic Films and Surfaces (ICMFS-2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Magnetic property modification by heavy ion irradiation to lutetium-iron garnet2022

    • Author(s)
      K. Harii, T. Ohshima, S. Okayasu, M. Umeda, H. Arisawa, T. Hioki, and J. Ieda
    • Organizer
      the 24th International Colloquium on Magnetic Films and Surfaces (ICMFS-2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 磁性絶縁体 LuIG の磁化過程に対する高エネルギー重イオン照射効果2022

    • Author(s)
      針井 一哉, 岡安 悟, 埋田 真樹, 有沢 洋希, 日置 友智, 家田 淳一
    • Organizer
      日本物理学会2022年秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Magnetic property modification of LuIG caused by ion beam irradiation2021

    • Author(s)
      Kazuya Harii、Satoru Okayasu、Maki Umeda、Nana Sato、Hiroki Arisawa、Tomosato Hioki、Jun'ichi Ieda
    • Organizer
      2021年第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Remarks] 代表者ホームページ

    • URL

      http://asrc.jaea.go.jp/soshiki/gr/spinenergy/ieda/index.html

    • Related Report
      2023 Annual Research Report
  • [Patent(Industrial Property Rights)] 薄膜インダクタ素子、薄膜可変インダクタ素子及び積層薄膜素子の使用方法2022

    • Inventor(s)
      荒木康史、家田淳一、山根結太、深見俊輔
    • Industrial Property Rights Holder
      東北大学、日本原子力研究開発機構
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2022-183158
    • Filing Date
      2022
    • Related Report
      2022 Annual Research Report

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

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