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Magnetization reversal with electric field applied in antiferromagnetic dielectric with two dimensional spin arrangement / ferromagnetic multilayer

Research Project

Project/Area Number 17K06358
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Electronic materials/Electric materials
Research InstitutionNihon University

Principal Investigator

IWATA Nobuyuki  日本大学, 理工学部, 教授 (20328686)

Co-Investigator(Kenkyū-buntansha) 永田 知子  日本大学, 理工学部, 助教 (00733065)
高瀬 浩一  日本大学, 理工学部, 教授 (10297781)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords電気磁気効果 / Cr2O3 / 交換バイアス磁場 / 電界効果型不揮発性磁気メモリ / 酸化物薄膜 / スパッタ法 / 電界印加型磁気メモリ / エピタキシャル成長 / 電界印加型磁化反転 / 2次元強磁性スピン配列 / 反強磁性ドメイン / 巨大電気磁気効果 / 積層膜 / 電界駆動型磁気メモリ / 反強磁性/強磁性界面 / 電界制御型磁気メモリ
Outline of Final Research Achievements

Iron Fe(2%) doped Cr2O3 thin films were deposited on YAlO3(YAO)(001) substrate to reduce lattice mismatch. Comparing the results of Cr2O3 films grown on YAO and sapphire substrates, the size of grains was 3.7 and 1.4 times larger, and the area of trenches was reduced down to 48 and 51%, respectively.
Pt(1.5nm)/Co(0.6nm)/Pt(0.5nm)/Cr2O3 multilayer was grown on YAO substrate. Magnetization curves was measured between 50 and 300K normal to the surface. The maximum exchange bias field (HEB) was observed at 160K. The value of HEB was 620Oe, which is the highest value in the multilayers using r-oriented Cr2O3 thin films. The HEB gradually decreased with temperature increased and became zero around Neel temperature 307K of Cr2O3.

Academic Significance and Societal Importance of the Research Achievements

本研究では電流によるジュール損失が極小の不揮発性磁気メモリを提案する。電界印加による磁化反転には、10nm×10nmのセル面積で、書込遅延100ps以下、読出し遅延1ns以下が予想できる。c面配向Cr2O3薄膜を用いた積層膜で同様な研究報告がある。しかし、双晶を含有し反強磁性(AFM)単一ドメインを得られないことから、電界印加のみによる磁化反転は未だ報告がない。AFM単一ドメインが得られるr面配向Cr2O3を用いて最大620Oeの交換バイアス磁場を観測した事は超低消費電力動作の不揮発性磁気メモリ開発にとって大きな成果となった。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (43 results)

All 2019 2018 2017 Other

All Int'l Joint Research (1 results) Journal Article (7 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 2 results) Presentation (32 results) (of which Int'l Joint Research: 13 results,  Invited: 3 results) Remarks (3 results)

  • [Int'l Joint Research] Univ. of Twente, MESA+ IMS(Netherlands)

    • Related Report
      2017 Research-status Report
  • [Journal Article] Modulation in charge ordering structure of ferroelectric YbFe2O4 by magnetic ordering2018

    • Author(s)
      Nagata T.、Ikeda N.
    • Journal Title

      AIP Advances

      Volume: 8 Issue: 7 Pages: 075312-075312

    • DOI

      10.1063/1.5026921

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Review of thin films of RFe2O4 (R=Lu, Yb, Tm or In)2018

    • Author(s)
      Nagata Tomoko
    • Journal Title

      Material Science & Engineering International Journal

      Volume: 2 Issue: 2 Pages: 34-37

    • DOI

      10.15406/mseij.2018.02.00031

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Crystal structure of YbFe2O4 films prepared under different partial oxygen pressure2018

    • Author(s)
      Nagata Tomoko、Hiraoka Kyoya、Okamoto Takuya、Iwata Nobuyuki
    • Journal Title

      Thin Solid Films

      Volume: 665 Pages: 96-98

    • DOI

      10.1016/j.tsf.2018.09.012

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] One-pot synthesis of monodisperse CoFe2O4@Ag core-shell nanoparticles and their characterization2018

    • Author(s)
      Hara, Shuta; Aisu, Jumpei; Kato, Masahiro; Aono, Takashige; Sugawa, Kosuke; Takase, Kouichi; Otsuki, Joe; Shimizu, Shigeru; Ikake, Hiroki
    • Journal Title

      Nanoscale Research Letters

      Volume: 13 Issue: 1 Pages: 1-7

    • DOI

      10.1186/s11671-018-2544-z

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Electronic and Thermoelectric Properties of Layered Oxychalcogenides (BiO)CuCh (Ch = S, Se, Te)2018

    • Author(s)
      Muhammady Shibghatullah、Kurniawan Yudhi、Ishiwata Seiya、Rousuli Awabaikeli、Nagasaki Toshiki、Nakamura Shogo、Sato Hitoshi、Higashiya Atsushi、Yamasaki Atsushi、Hara Yoshiaki、Rusydi Andrivo、Takase Kouichi、Darma Yudi
    • Journal Title

      Inorganic Chemistry

      Volume: 57 Issue: 16 Pages: 10214-10223

    • DOI

      10.1021/acs.inorgchem.8b01396

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 酸化物単結晶基板上に成膜したCr2O3薄膜の結晶性向上のための成長条件探索2017

    • Author(s)
      榎本 翼・福井慎二朗・平戸剛志・小野寺 巧・永田知子・山本 寛・岩田展幸
    • Journal Title

      電子情報通信学会技術報告書 信学技報(IEICE Technical report),

      Volume: 117 Pages: 11-14

    • Related Report
      2017 Research-status Report
  • [Journal Article] Co/Pt/Cr2O3単結晶積層膜の結晶構造解析およびホール効果2017

    • Author(s)
      平戸剛志・福井慎二郎・榎本 翼・小野寺 巧・永田知子・山本 寛・岩田展幸
    • Journal Title

      電子情報通信学会技術報告書 信学技報(IEICE Technical report),

      Volume: 117 Pages: 15-17

    • Related Report
      2017 Research-status Report
  • [Presentation] LaFeO3/CaFeOx人工超格子および積層膜のCaFeOxの酸化度およびLaFeO3膜厚が磁気特性に与える影響2019

    • Author(s)
      岡本卓也, 平岡恭也, 寺地勇博, 坂本洸大, 岩田展幸
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] パルスレーザー堆積法を用いたYbFe2O4/Fe3O4積層膜の作製2019

    • Author(s)
      平岡 恭也,寺地 勇博,岡本 卓也,山田 隼平,岩田 展幸
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Investigation of Materials Design and Fabrication Technique of Oxides Films for Electric Field Driven Novel Devices2019

    • Author(s)
      Nobuyuki Iwata, Takuya Okamoto, Kyoya Hiraoka, Yukiya Kubota, Hiroki Teraji and Hiroki Kashimoto
    • Organizer
      The 7th International Coference on Advanced Materials Science and Technology 2019 (ICAMST2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Growth and Exchange Bias Field Behavior of Ferromagnetic Metals / (1-102) oriented Cr2O3 Multilayers on YAlO3(001) Substrates2019

    • Author(s)
      Y. Kubota, T. Tateno, H. Kashimoto, T. Sato, N. Iwata
    • Organizer
      26th International Workshop on Oxide Electronics (iWOE26)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 成長中の自由電子レーザー照射によって面内配向およびカイラリティ制御された単層カーボンナノチューブの作製2019

    • Author(s)
      Y. Ogawa, T. Kishida, T. Kasagami, T. Kobayashi, N. Iwata
    • Organizer
      第29回日本MRS年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] DC-RFマグネトロンスパッタリング法により作製したエピタキシャルCu-Ni(111)合金上へのグラフェン成長2019

    • Author(s)
      M. Suzuki, H. Takehara, T. Kotani, N. Iwata
    • Organizer
      第29回日本MRS年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] パルスレーザ堆積法によるエピタキシャルYbFe2O4/ Fe3O4積層膜の作製と電気的特性2019

    • Author(s)
      K. Hiraoka, T. Teraji, T. Okamoto, K. Sakamoto, S. Yamada, N. Iwata
    • Organizer
      第29回日本MRS年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] YAlO3基板上に成膜したPt/Co/r-Cr2O3積層膜における交換バイアス磁場のr-Cr2O3膜厚依存性2019

    • Author(s)
      Y. Kubota, H. Kashimoto, T. Sato, T. Tateno N. Iwata
    • Organizer
      第29回日本MRS年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] パルスレーザ堆積法によるYSZ(111)およびAl2O3(0001)基板上のYbFe2O4の薄膜作製2019

    • Author(s)
      T. Teraji, K. Hiraoka, K. Sakamoto, S. Yamada, T. Okamoto, N. Iwata
    • Organizer
      第29回日本MRS年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] CaFeOX/LaFeO3人工超格子及び積層膜のCaFeOX層中のCaFeO3存在比率に対する磁気特性比較2019

    • Author(s)
      T. Okamoto, K. Sakamoto, K. Hiraoka, T. Teraji N. Iwata
    • Organizer
      第29回日本MRS年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Advanced Functional Oxides2019

    • Author(s)
      N. Iwata, H. Nishikawa, K. Fujiwara and T. Yamamoto
    • Organizer
      日本MRS創立30周年記念シンポジウム
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] CaFeOx / LaFeO3 Superlattices and/or Multilayers, Candidate Materials for Magnetic Property Controlled by Electric Field2018

    • Author(s)
      Nobuyuki Iwata, Takuya Okamoto, Kyoya Hiraoka, Xinweilong Li, Kazuki Hirose, Tomoko Nagata
    • Organizer
      7th International Symposium on Transparent Conductive Materials, 4th EMRS & MRS-J Bilateral Symposium
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Fabrication of Novel Materials and its Magnetic Properties for Electric Field Driven Magnetic Memory2018

    • Author(s)
      Nobuyuki Iwata*, Tsuyoshi Hirato, Takuya Okamoto, Kyoya Hiraoka, Yukiya Kubota, Tomoko Nagata
    • Organizer
      19th International Union of Materials Research Societies International Conference in Asia (IUMRS-ICA 2018)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Induced Ferromagnetism and its Mechanism in CaFeOx / LaFeO3 Superlattices and Multilayers2018

    • Author(s)
      N. Iwata, T. Okamoto, K. Hiraoka, X. Li, K. Hirose and T. Nagata
    • Organizer
      第28回日本MRS年次大会
    • Related Report
      2018 Research-status Report
  • [Presentation] Mechanism and Development of Induced Ferromagnetism at the Interface in CaFeOx / LaFeO3 Superlattices and Multilayers2017

    • Author(s)
      N. Iwata, T. Akazawa, S. Ohashi, H. Matsuyama, T. Koyama, H, Song, J. Geessinck, G. Koster, M. Huijben, G. Rijnders, T. Nagata, H. yamamoto
    • Organizer
      International Union of Materials Research Societies - The 15th International Conference on Advanced Materials (IUMRS-ICAM 2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Stoichiometric Study of Electronic Ferroelectric, YbFe2O4 Film2017

    • Author(s)
      T. Nagata, Y. Watabe, T. Koyama, K. Nakayama, H. Yamamoto and N. Iwata
    • Organizer
      International Union of Materials Research Societies - The 15th International Conference on Advanced Materials (IUMRS-ICAM 2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Fabrication and Structure Analysis of (Cr1-xFex)2O3 Film by Sputtering Method2017

    • Author(s)
      S. Fukui, T. Hirato, T. Nagata, H. Yamamoto and N. Iwata
    • Organizer
      International Union of Materials Research Societies - The 15th International Conference on Advanced Materials (IUMRS-ICAM 2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Preparation and Magnetic Property of CaFeO3/LaFeO3 Hetero-Structure Grown on SrTiO3(001) and LaAlO3(001) Substrates2017

    • Author(s)
      T. Akazawa, S. Ohashi , H. Matsuyama, T. Koyama, H. Song, J. Geessinck, G. Koster, G. Rijnders, T. Nagata, H. Yamamoto, and N. Iwata
    • Organizer
      International Union of Materials Research Societies - The 15th International Conference on Advanced Materials (IUMRS-ICAM 2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Crystal Growth and Electric Property of SrFeOx Thin Films Deposited by Pulsed Laser Deposition Method2017

    • Author(s)
      T. Koyama, S. Ohashi, T. Akazawa, H. Matsuyama, H. Song, T. Nagata, H. Yamamoto and N. Iwata
    • Organizer
      International Union of Materials Research Societies - The 15th International Conference on Advanced Materials (IUMRS-ICAM 2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Crystal Structure Analysis and Interface Electric Properties of LaMnO3/BiFeO3/SrRuO3Multilayered Thin Films Grown by Pulsed Laser Deposition Method2017

    • Author(s)
      H. Matsuyama, C .Wang, H. Song, T. Akazawa, S. Ohashi, T. Koyama, T. Nagata, H. Yamamoto, N. Iwata
    • Organizer
      International Union of Materials Research Societies - The 15th International Conference on Advanced Materials (IUMRS-ICAM 2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] The Origin of Induced Ferromagnetism in [(CaFeOx)/(LaFeO3)] Artificial Superlattices2017

    • Author(s)
      S. Ohashi, H. Matsuyama ,T. Akazawa, T. Koyama, H, Song, J. Geessinck, G. Koster, M. Huijben, G. Rijnders, T. Nagata, H. yamamoto, and N. Iwata
    • Organizer
      International Union of Materials Research Societies - The 15th International Conference on Advanced Materials (IUMRS-ICAM 2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Crystal Structure Analysis and Magnetic / Electric Properties of [CaFeOx/BiFeO3] Superlattice Grown on SrTiO3(110) Substrate2017

    • Author(s)
      H.Matsuyama, S. Ohashi, T. Koyama, T. Akazawa, H. Song, T. Nagata, H. Yamamoto, N. Iwata
    • Organizer
      International Union of Materials Research Societies - The 15th International Conference on Advanced Materials (IUMRS-ICAM 2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Exchange Bias Field of Co/Pt/r-oriented and c-oriented Cr2O3 Multilayer2017

    • Author(s)
      T.Hirato, S.Fukui, T.Nagata, H.Yamamoto, N.Iwata
    • Organizer
      International Union of Materials Research Societies - The 15th International Conference on Advanced Materials (IUMRS-ICAM 2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] CaFeOx / LaFeO3人工超格子界面に現れる誘起強磁性とその起源2017

    • Author(s)
      大橋 祥平 松山 裕貴 赤澤 孝徳 宋 華平 小山 智之 岡本 卓也 舘野 友優 永田 知子 山本 寛 岩田 展幸
    • Organizer
      電子情報通信学会 電子部品・材料研究会(CPM)
    • Related Report
      2017 Research-status Report
  • [Presentation] BiFe1-xMnxO3単相膜及び[CaFeOx/BiFe1-xMnxO3]人工超格子の面直方向に関する電気特性2017

    • Author(s)
      松山 裕貴 大橋 祥平 小山 智之 赤澤 孝徳 宋 華平 館野 友優 岡本 卓也 永田 知子 山本 寛 岩田 展幸
    • Organizer
      電子情報通信学会 電子部品・材料研究会(CPM)
    • Related Report
      2017 Research-status Report
  • [Presentation] 電子型強誘電体YbFe2O4薄膜の作製と化学当量性の評価2017

    • Author(s)
      永田 知子 小野寺 巧 山本 寛 岩田 展幸
    • Organizer
      電子情報通信学会 電子部品・材料研究会(CPM)
    • Related Report
      2017 Research-status Report
  • [Presentation] Investigation for Improvement of Crystalline Quality of Cr 2 O 3 Thin Film Deposited on Oxide Single Crystal Substrates2017

    • Author(s)
      榎本 翼・福井慎二朗・平戸剛志・小野寺 巧・永田知子・山本 寛・岩田展幸
    • Organizer
      電子情報通信学会 電子部品・材料研究会(CPM)
    • Related Report
      2017 Research-status Report
  • [Presentation] Crystal structure analysis and Hall effect of Co/Pt/single crystalline Cr2O3 Multilayer2017

    • Author(s)
      平戸剛志・福井慎二郎・榎本 翼・小野寺 巧・永田知子・山本 寛・岩田展幸
    • Organizer
      電子情報通信学会 電子部品・材料研究会(CPM)
    • Related Report
      2017 Research-status Report
  • [Presentation] Fabrication of Electronic Ferroelectric YbFe2O4 Film under Stoichiometric Consideration2017

    • Author(s)
      T. Nagata, T. Onodera, H. Yamamoto and N. Iwata
    • Organizer
      27th Annual Meeting of MRS-J (2017)
    • Related Report
      2017 Research-status Report
  • [Presentation] Electric Properties and The origin of induced Ferromagnetism in [(CaFeOx)n/(LaFeO3)n] (n=1, 3, 5, 7) Artificial Superlattices2017

    • Author(s)
      S.Ohashi, H.Matsuyama, T.Akazawa, T.Koyama, T.Okamoto, T.Nagata, H.song, Y.Hiroshi, and N.Iwata
    • Organizer
      27th Annual Meeting of MRS-J (2017)
    • Related Report
      2017 Research-status Report
  • [Presentation] Electric Properties of BiFe1-xMnxO3 Films Related Superlattices G2017

    • Author(s)
      H.Matsuyama,S.Ohashi, T.Koyama, T.Akazawa, T.Okamoto, T.Nagata, H.song, Y.Hiroshi, and N.Iwata
    • Organizer
      27th Annual Meeting of MRS-J (2017)
    • Related Report
      2017 Research-status Report
  • [Presentation] Fabrication and Structure Analysis of (Cr1-xFex)2O3 Film by Sputtering Method2017

    • Author(s)
      S. Fukui, T. Hirato, T. Nagata, H. Yamamoto and N. Iwata
    • Organizer
      27th Annual Meeting of MRS-J (2017)
    • Related Report
      2017 Research-status Report
  • [Remarks] 日本大学理工学部 電子工学科 岩田研究室

    • URL

      http://yamanoya.ecs.cst.nihon-u.ac.jp/

    • Related Report
      2019 Annual Research Report
  • [Remarks]

    • URL

      http://yamanoya.ecs.cst.nihon-u.ac.jp/index.html

    • Related Report
      2018 Research-status Report
  • [Remarks]

    • URL

      http://yamanoya.ecs.cst.nihon-u.ac.jp/

    • Related Report
      2017 Research-status Report

URL: 

Published: 2017-04-28   Modified: 2021-02-19  

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