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Development of nanogranular transparent ferromagnetic material with new magneto-optical effect

Research Project

Project/Area Number 17H03420
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Structural/Functional materials
Research InstitutionResearch Institute for Electromagnetic Materials

Principal Investigator

Kobayashi Nobukiyo  公益財団法人電磁材料研究所, その他部局等, 研究員(移行) (70205475)

Co-Investigator(Kenkyū-buntansha) 薮上 信  東北大学, 医工学研究科, 教授 (00302232)
池田 賢司  公益財団法人電磁材料研究所, その他部局, 研究員(移行) (40769569)
増本 博  東北大学, 学際科学フロンティア研究所, 教授 (50209459)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2019: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2018: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2017: ¥11,570,000 (Direct Cost: ¥8,900,000、Indirect Cost: ¥2,670,000)
Keywordsナノグラニュラー / 磁気光学効果 / ファラデー効果 / 磁性薄膜 / 磁気誘電効果 / 多機能性 / 透明強磁性体 / フッ化物 / 透明強磁性 / センサー・光機能材料 / 透明磁性体 / 高周波誘電特性
Outline of Final Research Achievements

We investigated nanogranular films including FeCo alloy granule with large magnetization and fluoride matrix with transparency. These films have ferromagnetic property and high optical transparency in the visible light region. Furthermore (Fe, FeCo)-(Al-,Y-fluoride) nanogranular films show giant Faraday effect. It is 40 times larger than that of Bi-YIG at the wavelength used for optical communication (1550 nm).
In order to use a nanogranular film for an optical device, it is necessary that both the Faraday rotation angle and the light transmittance are large, that is, the figure of merit is high. Nanogranylar films with BaF matrix have a good figure of merit of Faraday effect based on crystallinity of the matrix. The figure of merit of these films is increased by fabricated on a heated substrate and subsequent annealing.

Academic Significance and Societal Importance of the Research Achievements

ファラデー効果を示す材料は、光アイソレーターなど、光通信システムに広く用いられている。1972年にBi-YIGが発見されて以来、これを超えるファラデー回転角を有する物質は見つかっていない。さらに、光デバイスの小型化および集積化には、材料の薄膜化が必須である。本成果は、全く新しいファラデー効果材料を提案するものであり、ファラデー回転角はBi-YIGの約40倍(1550 nm)の大きな値を有し、薄膜であって、新しい光デバイスの開発に大きく寄与する。本成果はScientific Reports誌に掲載され、同誌の2018年物理系論文での閲覧数が100位以内となり、世界的な評価と注目を受けた。

Report

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

    (38 results)

All 2020 2019 2018 2017

All Journal Article (13 results) (of which Peer Reviewed: 9 results,  Open Access: 4 results) Presentation (23 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results) Book (2 results)

  • [Journal Article] 金属-セラミックスナノグラニュラー薄膜の磁気-誘電効果2019

    • Author(s)
      小林伸聖
    • Journal Title

      日本磁気学会第224回研究会資料

      Volume: 224-3 Pages: 19-21

    • Related Report
      2019 Annual Research Report
  • [Journal Article] 窒化物をマトリックスとしたナノグラニュラー薄膜の磁気光学効果2019

    • Author(s)
      池田賢司, 小林伸聖, 荒井賢一
    • Journal Title

      電気学会マグネティックス研究会資料

      Volume: MAG-19-090 Pages: 63-68

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Tunnel-Type Magneto-Dielectric Effect and It’s Annealing Study in CoSiO2 Granular Films2018

    • Author(s)
      Yang Cao, Nobukiyo Kobayashi, Shigehiro Ohnuma, and Hiroshi Masumoto
    • Journal Title

      Materials Transactions

      Volume: 59 Pages: 585-589

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Tailored tunneling magneto-dielectric effects in Co-MgF2 granular nanostructures by in-situ insertion of thin MgF2 layers2018

    • Author(s)
      Cao Yang、Kobayashi Nobukiyo、Ohnuma Shigehiro、Masumoto Hiroshi
    • Journal Title

      Applied Physics Letters

      Volume: 113 Issue: 2 Pages: 022906-022906

    • DOI

      10.1063/1.5040779

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] FeCo-(al-,Y-F)系ナノグラニュラー膜の巨大ファラデー効果2018

    • Author(s)
      小林伸聖、池田賢司、Bo Gu, 高橋三郎、増本博、前川禎通
    • Journal Title

      電気学会マグネティックス・リニアドライブ合同研究会資料

      Volume: MAG-18-077 Pages: 79-84

    • Related Report
      2018 Annual Research Report
  • [Journal Article] ナノグラニュラー透明強磁性材料の開発2018

    • Author(s)
      小林伸聖
    • Journal Title

      応用物理

      Volume: 87 Pages: 21-24

    • NAID

      130007715560

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Giant Faraday Rotation in Metal-Fluoride Nanogranular Films2018

    • Author(s)
      Kobayashi N.、Ikeda K.、Gu Bo、Takahashi S.、Masumoto H.、Maekawa S.
    • Journal Title

      Scientific Reports

      Volume: 8 Issue: 1 Pages: 4978-4978

    • DOI

      10.1038/s41598-018-23128-5

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Magnetoelectric effect in nanogranular FeCo-MgF films at GHz frequencies2018

    • Author(s)
      Ikeda K., Kobayashi N., Arai K. I., Yabukami S.
    • Journal Title

      Journal of Magnetism and Magnetic Materials

      Volume: 446 Pages: 80-85

    • DOI

      10.1016/j.jmmm.2017.08.088

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Enhancement of low-field magneto-dielectric response in two-dimensional Co/AlF granular films2017

    • Author(s)
      Y. Cao, N. Kobayashi, Y. Zhang, S. Ohnuma, and H. Masumoto
    • Journal Title

      Applied Physics Letters

      Volume: 110 Issue: 7 Pages: 172902-172902

    • DOI

      10.1063/1.4976743

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Control of the static and high-frequency magnetic properties in perpendicular anisotropic CoHfN granular films through insertion of HfN interlayers2017

    • Author(s)
      Y. Cao, Y. Zhang, S. Ohnuma, N. Kobayashi, and H. Masumoto
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 56 Issue: 4 Pages: 040307-040307

    • DOI

      10.7567/jjap.56.040307

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Magnetic properties and thermal stability of Co/HfN multilayer films for high-frequency application2017

    • Author(s)
      Cao Y.、Zhang Y. W.、Ohnuma S.、Kobayashi N.、Masumoto H.
    • Journal Title

      AIP Advances

      Volume: 7 Issue: 6 Pages: 065202-065202

    • DOI

      10.1063/1.4983402

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Enhanced orbital magnetic moment in FeCo nanogranules observed by Barnett effect2017

    • Author(s)
      Ogata Y.、Chudo H.、Gu B.、Kobayashi N.、Ono M.、Harii K.、Matsuo M.、Saitoh E.、Maekawa S.
    • Journal Title

      Journal of Magnetism and Magnetic Materials

      Volume: 442 Pages: 329-331

    • DOI

      10.1016/j.jmmm.2017.06.101

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Tunable frequency response of tunnel-type magneto-dielectric effect in Co-2-MgF2 granular films with different content of Co2017

    • Author(s)
      Y. Cao, A. Umetsu, N. Kobayashi, S. Ohnuma, H. Masumoto
    • Journal Title

      Applied Physics Letters

      Volume: 111 Issue: 12 Pages: 122901-122901

    • DOI

      10.1063/1.4985335

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 差動圧力スパッタ法により作製したCo-SrTiO3系ナノ複相薄膜におけるトンネル磁気-誘電効果の発現2020

    • Author(s)
      木村萌,曹洋,青木英恵,小林伸聖,大沼繁弘,増本博
    • Organizer
      日本金属学会2020年春季講演大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Reactive magnetron co-sputtering deposition of Co-F-C granular films2020

    • Author(s)
      曹洋, 小林伸聖, 大沼繁弘, 増本博
    • Organizer
      日本金属学会2020年春季講演大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Co-酸化物系ナノコンポジット薄膜の構造とトンネル磁気-誘電効果2020

    • Author(s)
      木村萌,曹洋,青木英恵,大沼繁弘,小林伸聖,増本博
    • Organizer
      日本セラミックス協会2020年年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 金属-セラミックスナノグラニュラー膜の磁気・誘電・光機能性2020

    • Author(s)
      小林伸聖
    • Organizer
      令和2年電気学会全国大会・シンポジウム
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 窒化物をマトリックスとしたナノグラニュラー薄膜の磁気光学効果2019

    • Author(s)
      池田賢司、小林伸聖、荒井賢一
    • Organizer
      電気学会マグネティックス研究会
    • Related Report
      2019 Annual Research Report
  • [Presentation] FeCo-BaFナノグラニュラー膜の構造と巨大ファラデー効果2019

    • Author(s)
      小林伸聖、池田賢司、岩佐忠義、荒井賢一
    • Organizer
      第43回磁気学会学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] SiNマトリックスナノグラニュラー薄膜の磁気光学効果2019

    • Author(s)
      池田賢司、小林伸聖、荒井賢一
    • Organizer
      第43回磁気学会学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Improvement of tunneling magnetodielectric effect for Co-Al2O3 nano-composite films by optimization of preparation conditions2019

    • Author(s)
      M. Kimura,Y. Cao,H. Aoki,N Kobayashi,S. Ohnuma,H. Masumoto
    • Organizer
      The 13th Pacific Rim Conference of Ceramic Societies
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Structure and Magneto-dielectric Properties in Co-F-C Nanocomposites2019

    • Author(s)
      Y. Cao,N. Kobayashi,S. Ohnuma,H. Masumoto
    • Organizer
      The 13th Pacific Rim Conference of Ceramic Societies
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Tunneling Magneto-Dielectric Effects of Crystallized Co-BaF2 Nano-granular Films at MHz Frequencies,2019

    • Author(s)
      H. Kijima-Aoki, Y. Cao, Y. Endo, N. Kobayashi, S. Ohnuma, H. Masumoto
    • Organizer
      joint MMM-Intermag Conference
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Large Enhanced Tunneling Magneto-Dielectric Response in Co-MgF2 Films by Addition of Si2018

    • Author(s)
      曹洋, 小林伸聖, 大沼繁弘, 増本 博
    • Organizer
      日本金属学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 多元分離式スパッタリング法により作製したCo-Dy-Fナノ複相薄膜の構造とトンネル磁気誘電特性2018

    • Author(s)
      王誠,曹洋,小林伸聖,大沼繁弘,増本博
    • Organizer
      日本金属学会
    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
  • [Presentation] Enhancement effect of minor addition of Si on magneto-dielectric properties in CoFe-MgF2 nano-granular films2018

    • Author(s)
      Cao Yang, Kobayashi Nobukiyo, Ohnuma Shigehiro, Masumoto Hirosh
    • Organizer
      公益社団法人日本セラミックス協会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 金属-フッ化物系ナノグラニュラー膜の巨大ファラデー効果2018

    • Author(s)
      小林伸聖, 池田賢司, 顧波, 高橋三郎, 増本博, 前川禎通
    • Organizer
      磁気学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] FeCo-MgFナノグラニュラー薄膜を用いた光磁界センサ2018

    • Author(s)
      大場裕行,小林伸聖,池田賢司,荒井賢一
    • Organizer
      磁気学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Tunable frequency response of tunneling-magneto-dielectric effect in Co-MgF2/MgF2 granular film2018

    • Author(s)
      曹洋,青木英恵,小林伸聖,大沼繁弘,増本 博
    • Organizer
      日本セラミックス協会
    • Related Report
      2018 Annual Research Report
  • [Presentation] FeCo-AlFナノグラニュラー透明強磁性薄膜2018

    • Author(s)
      小林伸聖,池田賢司,顧波,増本博,高橋三郎,前川禎通
    • Organizer
      電気学会マグネティックス研究会
    • Related Report
      2018 Annual Research Report
  • [Presentation] マグネトロンスパッタ法により作製したCo-SrF2ナノ複相薄膜の構造とトンネル磁気誘電特性2017

    • Author(s)
      王誠,曹洋,張亦文,大沼繁弘,小林伸聖,増本博
    • Organizer
      日本セラミックス協会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Giant Enhancement of Tunnel-type Magneto-Dielectric Effect in Co2Fe-MgF2 Granular Films2017

    • Author(s)
      Yang Cao, Nobukiyo Kobayashi, Shigehiro Ohnuma and Hiroshi Masumoto
    • Organizer
      日本金属学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 多元分離式スパッタリング法により作製したCo-Sr-Fナノ複相薄膜のトンネル磁気誘電特性2017

    • Author(s)
      王誠,曹洋,張亦文,大沼繁弘,小林伸聖,増本博
    • Organizer
      日本金属学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 金属-フッ化物ナノグラニュラー膜のTMD効果に基づく磁気光学効果2017

    • Author(s)
      小林伸聖,池田賢司,増本博,高橋三郎,前川禎通
    • Organizer
      日本金属学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 光透過性を有する磁性金属-フッ化物ナノグラニュラー膜の磁気光学効果2017

    • Author(s)
      小林伸聖,池田賢司,増本博,高橋三郎,前川禎通
    • Organizer
      日本磁気学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] FeCo-MgFナノグラニュラー薄膜における高周波TMD効果2017

    • Author(s)
      池田賢司,小林伸聖,薮上信,荒井賢一
    • Organizer
      日本磁気学会
    • Related Report
      2017 Annual Research Report
  • [Book] 自動運転車・ミラーレス車用カメラ・センサの技術と市場2018

    • Author(s)
      小林伸聖
    • Total Pages
      9
    • Publisher
      シーエムシー出版刊
    • Related Report
      2017 Annual Research Report
  • [Book] 磁性材料・部品の最新開発事例と応用技術2018

    • Author(s)
      小林伸聖,蟹江三次
    • Total Pages
      9
    • Publisher
      技術情報協会
    • Related Report
      2017 Annual Research Report

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

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