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Nano-structures for multiferroic devices

Research Project

Project/Area Number 25706022
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypePartial Multi-year Fund
Research Field Thin film/Surface and interfacial physical properties
Research InstitutionThe University of Tokyo

Principal Investigator

Takahashi Ryota  東京大学, 物性研究所, 助教 (80546573)

Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥24,960,000 (Direct Cost: ¥19,200,000、Indirect Cost: ¥5,760,000)
Fiscal Year 2015: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2014: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Fiscal Year 2013: ¥14,820,000 (Direct Cost: ¥11,400,000、Indirect Cost: ¥3,420,000)
Keywordsマルチフェロイック / 酸化物エレクトロニクス / ナノ構造 / 酸化物
Outline of Final Research Achievements

A new multiferroic material has explored by artificially designing the oxide nanostructures. At first, ferromagnetic La2NiMnO6 thin films were prepared on SrTiO3(001) substrates by using the pulsed laser deposition technique. By inducing the epitaxial strain into this crystal, La2NiMnO6 thin films were revealed to become ferroelectric crystals. The rhombohedral lattice with R-3 stuructures presents the displacement of A-site La ion along the [111]-direction under the tensile strain. Moreover, the nanocomposite multiferroic crystals with magnetic CoFe2O4 and ferroelectric Bi5Ti3FeO15 were prepared by pulsed laser deposition. Pyroelectric measurements revealed that this nanocomposite crystal is polar. SQUID measurements proved that the magnetism of nanocomposites were originated from the formation of CoFe2O4 nanopillers. Magnetocapacitance measurements revealed the multiferroelectricity of nanocomposites of magnetic CoFe2O4 and ferroelectric Bi5Ti3FeO15 crystals.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Annual Research Report
  • 2013 Annual Research Report
  • Research Products

    (28 results)

All 2016 2015 2014 2013 Other

All Int'l Joint Research (2 results) Journal Article (9 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 9 results,  Acknowledgement Compliant: 5 results,  Open Access: 2 results) Presentation (15 results) (of which Int'l Joint Research: 3 results,  Invited: 5 results) Remarks (2 results)

  • [Int'l Joint Research] ノルウェー工科大学(ノルウェー)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] ニューサウスウェルズ大学(オーストラリア)

    • Related Report
      2015 Annual Research Report
  • [Journal Article] The effect of polar (111)-oriented SrTiO3 on initial perovskite growth2016

    • Author(s)
      I. Hallsteinsen, M. Nord, T. Bolstad, P. -E. Vullum, J. E. Boschker, P. Longo, R. Takahashi, R. Holmestad, M. Lippmaa, T. Tybell
    • Journal Title

      Cryst. Growth Des.

      Volume: 16 Issue: 4 Pages: 2357-2362

    • DOI

      10.1021/acs.cgd.6b00143

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] A-site-driven ferroelectricity in strained ferromagnetic La2NiMnO6 thin films2015

    • Author(s)
      R. Takahashi, I. Ohkubo, K. Yamauchi, M. Kitamura, Y. Sakurai, M. Oshima, T. Oguchi, Y. Cho, and M. Lippmaa
    • Journal Title

      Phys. Rev. B

      Volume: 91 Issue: 13 Pages: 061605-061605

    • DOI

      10.1103/physrevb.91.134107

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Photo-electrochemical epitaxy of silver-oxide clathrate Ag7O8M (M=NO3, HSO4) on rutile-type Nb-doped TiO2 single crystals2015

    • Author(s)
      R. Tanaka, R. Takahashi, S. Takata, M. Lippmaa, Y. Matsumoto
    • Journal Title

      CrystEngComm

      Volume: 17 Issue: 19 Pages: 3701-3707

    • DOI

      10.1039/c5ce00329f

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Magnetic coupling at perovskite and rock-salt structured interfaces2015

    • Author(s)
      M. Matvejeff, E. Ahvenniemi, R. Takahashi, M. Lippmaa
    • Journal Title

      Appl. Phys. Lett.

      Volume: 107 Issue: 14 Pages: 141604-141604

    • DOI

      10.1063/1.4931705

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Interfacial capacitance between a ferroelectric Fe3O4 thin film and a semiconducting Nb:SrTiO3 substrate2015

    • Author(s)
      R. Takahashi,Y. Cho, M. Lippmaa
    • Journal Title

      J. Appl. Phys

      Volume: 117 Issue: 1 Pages: 014104-014104

    • DOI

      10.1063/1.4905384

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Growth temperature effect on the structural and magnetic properties of Fe3O4 films grown by the self-template method2014

    • Author(s)
      R. Takahashi, H. Misumi and M. Lippmaa
    • Journal Title

      Journal of Applied Physics

      Volume: 116 Issue: 3 Pages: 033918-033918

    • DOI

      10.1063/1.4890510

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Electronic Structure and Photoelectrochemical Properties of an Ir-Doped SrTiO3 Photocatalyst2014

    • Author(s)
      Seiji Kawasaki, Ryota Takahashi, Kazuto Akagi, Jun Yoshinobu, Fumio Komori, Koji Horiba, Hiroshi Kumigashira, Katsuya Iwashina, Akihiko Kudo, Mikk Lippmaa
    • Journal Title

      J. Phys. Chem. C

      Volume: 118 Issue: 35 Pages: 20222-20228

    • DOI

      10.1021/jp5062573

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Spontaneous growth of strain-free magnetite nano crystals via temperature-driven dewetting2014

    • Author(s)
      R. Takahashi, H. Misumi, T. Yamamoto, and M. Lippmaa
    • Journal Title

      Crystal Growth & Design

      Volume: 14 Issue: 3 Pages: 1264-1271

    • DOI

      10.1021/cg5000414

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Epitaxial Bi5Ti3FeO15-CoFe2O4 pillar-marix mutiferroic nanostructures2013

    • Author(s)
      A. Imai, X. Cheng, H. L. Xin, E. A. Eliseev, A. N. Morozovska, S. V. Kalinin, R. Takahashi, M. Lippmaa, Y. Matsumoto and V. Nagarajan
    • Journal Title

      ACS Nano

      Volume: 12 Issue: 12 Pages: 11079-11086

    • DOI

      10.1021/nn404779x

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Presentation] Fe3O4薄膜のSolid-state dewettingのAFM観察2016

    • Author(s)
      正能大起、高橋竜太、小沼碧海、丸山伸吾、松本祐司、S. Solmaz、N. Valanoor、Mikk Lippmaa
    • Organizer
      第63回応用物理学学術講演会
    • Place of Presentation
      東京都目黒区、東京工業大学
    • Year and Date
      2016-03-19
    • Related Report
      2015 Annual Research Report
  • [Presentation] 強磁性体 La2NiMnO6薄膜における強誘電性2016

    • Author(s)
      高橋竜太、大久保勇男、山内邦彦、北村未歩、桜井康成、尾嶋正治、小口多美夫、長康雄、Mikk Lippmaa
    • Organizer
      強的秩序とその操作にかかわる研究グループ 第1回研究会
    • Place of Presentation
      東京都港区、田町
    • Year and Date
      2016-01-04
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] A-site driven ferroelectricity in strained La2NiMnO6 thin films2015

    • Author(s)
      R. Takahashi, and M. Lippmaa
    • Organizer
      EMN 3CG 2015 Collaboration Conference on Crystal Growth
    • Place of Presentation
      中国、香港
    • Year and Date
      2015-12-14
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Negligible covalent bonding in proper ferroelectric ferromagnet: strained La2NiMnO6 thin film2015

    • Author(s)
      R. Takahashi, I. Ohkubo, K. Yamauchi, M. Kitamura, Y. Sakurai, M. Oshima, T. Oguchi, Y. Cho, M. Lippmaa
    • Organizer
      Material Research Society 2015 Fall meeting
    • Place of Presentation
      アメリカ、ボストン
    • Year and Date
      2015-11-29
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A-site displacement in ferroelectric and ferromagnetic strained La2NiMnO6 thin films2015

    • Author(s)
      R. Takahashi, I. Ohkubo, K. Yamauchi, M. Kitamura, Y. Sakurai, M. Oshima, T. Oguchi, Y. Cho, M. Lippmaa
    • Organizer
      The 9th International Conference on the Science and Technology for Advanced Ceramics (STAC9)
    • Place of Presentation
      茨城県、つくば市、エポカル
    • Year and Date
      2015-10-19
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A-siteが変位する強磁性強誘電体: La2NiMnO6薄膜2015

    • Author(s)
      高橋竜太、大久保勇男、山内邦彦、北村未歩、桜井康成、尾嶋正治、小口多美夫、長康雄、Mikk Lippmaa
    • Organizer
      第76回応用物理学学術講演会
    • Place of Presentation
      愛知県名古屋市、名古屋国際会議場
    • Year and Date
      2015-09-13
    • Related Report
      2015 Annual Research Report
  • [Presentation] Spontaneous growth of Fe3O4 nanopyramid structures2014

    • Author(s)
      R. Takahashi, T. Yamamoto, M. Lippmaa
    • Organizer
      2014 Collaborative Conference on Crystal Growth
    • Place of Presentation
      Phuket, Thailand
    • Year and Date
      2014-11-04 – 2014-11-07
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Pyroelectric detection of spontaneous polarization in multiferroic La2NiMnO6 thin films2014

    • Author(s)
      R. Takahashi, I. Ohkubo, M. Kitamura, M. Oshima, M. Lippmaa
    • Organizer
      Material Research Society 2014 Spring meeting
    • Place of Presentation
      San Francisco in USA
    • Year and Date
      2014-04-21 – 2014-04-25
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Pyroelectric detection of spontaneous polarization in multiferroic La2NiMnO6 thin films2014

    • Author(s)
      R. Takahashi, I. Ohkubo, M. Kitamura, M. Oshima, M. Lippmaa
    • Organizer
      Material Research Society 2014 Spring meeting
    • Place of Presentation
      San Francisco, USA
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] La2NiMnO6薄膜の強誘電性2014

    • Author(s)
      高橋竜太、大久保勇男、北村未歩、桜井康成、尾嶋正治、長康雄、Mikk Lippmaa
    • Organizer
      第61回応用物理学学術講演会
    • Place of Presentation
      青山学院大学(東京都)
    • Related Report
      2013 Annual Research Report
  • [Presentation] Pyroelectric response of an Fe3O4/Nb:SrTiO3 interface2013

    • Author(s)
      R. Takahashi, M. Lippmaa
    • Organizer
      The 12th Asia Pacific Physics Conference
    • Place of Presentation
      幕張メッセ(千葉県)
    • Related Report
      2013 Annual Research Report
  • [Presentation] Interfacial capacitance between an Fe3O4 film and a Nb:SrTiO3 substrate2013

    • Author(s)
      R. Takahashi, Y. Cho and M. Lippmaa
    • Organizer
      Material Research Society 2013 Fall meeting
    • Place of Presentation
      Boston, USA
    • Related Report
      2013 Annual Research Report
  • [Presentation] Self-assembled growth of magnetite nano-pyramid2013

    • Author(s)
      R. Takahashi, H. Misumi, T. Yamamoto, M. Lippmaa
    • Organizer
      Material Research Society 2013 Fall meeting
    • Place of Presentation
      Boston, USA
    • Related Report
      2013 Annual Research Report
  • [Presentation] Spontaneous growth of Fe3O4 nano-pyramid arrays2013

    • Author(s)
      R. Takahashi, T. Yamamoto, M. Lippmaa
    • Organizer
      Workshop on Oxide Electronics 20
    • Place of Presentation
      Singapore
    • Related Report
      2013 Annual Research Report
  • [Presentation] マグネタイトのピラミッド構造の初期成長2013

    • Author(s)
      高橋竜太、三隅光、山本剛久、Mikk Lippmaa
    • Organizer
      第74回応用物理学学術講演会
    • Place of Presentation
      同志社大学(京都府)
    • Related Report
      2013 Annual Research Report
  • [Remarks]

    • URL

      http://ryota718.wix.com/home

    • Related Report
      2015 Annual Research Report
  • [Remarks] 研究代表者のホームページ

    • URL

      http://lippmaa.issp.u-tokyo.ac.jp/Takahashi/Homepage/About_Me.html

    • Related Report
      2014 Annual Research Report

URL: 

Published: 2013-05-21   Modified: 2019-07-29  

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