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Science and innovation of improper ferroelectricity in layered perovskites

Research Project

Project/Area Number 20K20546
Research Category

Grant-in-Aid for Challenging Research (Pioneering)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 26:Materials engineering and related fields
Research InstitutionKyoto University

Principal Investigator

FUJITA Koji  京都大学, 工学研究科, 教授 (50314240)

Project Period (FY) 2020-07-30 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥25,870,000 (Direct Cost: ¥19,900,000、Indirect Cost: ¥5,970,000)
Fiscal Year 2022: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
Fiscal Year 2021: ¥13,650,000 (Direct Cost: ¥10,500,000、Indirect Cost: ¥3,150,000)
Fiscal Year 2020: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Keywords強誘電体
Outline of Research at the Start

膨大なペロブスカイト化合物の中で,反転中心のない構造をもつ物質は5%に満たず,応用分野も限定的であった.これは,金属元素-酸素間の共有結合形成に基づく同じ設計指針で物質開拓が行われてきたためである.この状況を一変させたのが,層状ペロブスカイトを対象とした新しい機構の登場である.研究代表者は,ペロブスカイト関連酸化物における酸素八面体回転によって結晶構造の反転対称性が破れることを初めて実証した.さらにこの原理を拡張して,従来の直接型強誘電体とは異なる物質群,すなわちハイブリッド間接型強誘電体を発見した.本研究では,強誘電体物質科学の新展開を目指して,層状化合物の設計,合成及び機能開拓に取り組む.

Outline of Final Research Achievements

Piezoelectricity and improper ferroelectricity in layered perovskites, which utilize ubiquitous rotation/tilting distortions to break inversion symmetry, offer an attractive route to the discovery of new functional materials because their activity derives from geometric rather than electronic origins. In this study, we demonstrate that a layered perovskite oxide, La2SrSc2O7, crystallizes in a polar orthorhombic symmetry (space group A21am) at room temperature, due to the random arrangement of two different A cations. The switchable polarization indicative of ferroelectricity can be revealed in a plot of polarization versus electric field.
In addition, we show that layered perovskite oxides, AgRTiO4 (R: rare earth), adopt an acentric tetragonal structure at room temperature. Interestingly, these compounds exhibit biaxial negative thermal expansion. We ascribe the observed phenomenon to the interplay between the structural distortions that alter the octahedral connectivity and shape.

Academic Significance and Societal Importance of the Research Achievements

膨大なペロブスカイト化合物の中で強誘電体・圧電体は5%に満たず、応用分野も限定的であった。酸素八面体回転に基づく強誘電体・圧電体の物質設計では、元素選択の自由度が大きいため、この方向での物質探索により高機能性を有する新規材料が登場する可能性は大いにある。また、現在は鉛を含むペロブスカイト強誘電体Pb(Zr,Ti)O3が圧電素子として広範に利用されているが、環境保全の観点からこれを代替する無鉛圧電材料の開発が強く求められている。新しい機構に基づく新材料の開発はそのような産業界の要望にも応えることができる。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (28 results)

All 2023 2022 2021 2020 Other

All Int'l Joint Research (4 results) Journal Article (10 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 10 results) Presentation (13 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results) Remarks (1 results)

  • [Int'l Joint Research] Rutherford Appleton Laboratory(英国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Pennsylvania State University(米国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Univ Rennes(フランス)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] Univ Rennes/Institut Laue-Langevin(フランス)

    • Related Report
      2020 Research-status Report
  • [Journal Article] Growth and phase transition of Sr3Zr2O7 single crystals2023

    • Author(s)
      Fukasawa Ikuya、Maruyama Yuki、Yoshida Suguru、Fujita Koji、Takahashi Hidehiro、Ohgaki Masataka、Nagao Masanori、Watauchi Satoshi、Gopalan Venkatraman、Tanaka Katsuhisa、Tanaka Isao
    • Journal Title

      Journal of Crystal Growth

      Volume: 615 Pages: 127241-127241

    • DOI

      10.1016/j.jcrysgro.2023.127241

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Interplay between Oxygen Octahedral Rotation and Deformation in the Acentric ARTiO4 Series toward Negative Thermal Expansion2022

    • Author(s)
      Yoshida Suguru、Akamatsu Hirofumi、Gibbs Alexandra S.、Kawaguchi Shogo、Gopalan Venkatraman、Tanaka Katsuhisa、Fujita Koji
    • Journal Title

      Chemistry of Materials

      Volume: 34 Issue: 14 Pages: 6492-6504

    • DOI

      10.1021/acs.chemmater.2c01245

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Topochemical Synthesis of LiCoF3 with a High-Temperature LiNbO3-Type Structure2022

    • Author(s)
      Matsuo Yumi、Matsukawa Yuko、Kitakado Masahiro、Hasegawa George、Yoshida Suguru、Kubonaka Ryoto、Yoshida Yuya、Kawasaki Tatsushi、Kobayashi Eiichi、Moriyoshi Chikako、Ohno Saneyuki、Fujita Koji、Hayashi Katsuro、Akamatsu Hirofumi
    • Journal Title

      Inorganic Chemistry

      Volume: 61 Issue: 30 Pages: 11746-11756

    • DOI

      10.1021/acs.inorgchem.2c01439

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Bi12O17Cl2 with a Sextuple Bi‐O Layer Composed of Rock‐Salt and Fluorite Units and its Structural Conversion through Fluorination to Enhance Photocatalytic Activity2022

    • Author(s)
      Kato Daichi、Tomita Osamu、Nelson Ryky、Kirsanova Maria A.、Dronskowski Richard、Matsuzaki Yosuke、Brown Craig M.、Fujita Koji、Fujii Kotaro、Yashima Masatomo、Kobayashi Yoji、Saeki Akinori、Oikawa Itaru、Takamura Hitoshi、Abe Ryu、Kageyama Hiroshi、Gorelik Tatiana E.、Abakumov Artem M.
    • Journal Title

      Advanced Functional Materials

      Volume: 32 Issue: 41 Pages: 2204112-2204112

    • DOI

      10.1002/adfm.202204112

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Topochemical Synthesis of Perovskite-Type CuNb2O6 with Colossal Dielectric Constant2021

    • Author(s)
      Fukuda Masayuki、Yamada Ikuya、Hojo Hajime、Takahashi Chihiro、Yoshida Yuya、Tanaka Katsuhisa、Azuma Masaki、Fujita Koji
    • Journal Title

      Journal of Materials Chemistry C

      Volume: 9 Issue: 39 Pages: 13981-13990

    • DOI

      10.1039/d1tc01711j

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Oxygen Release and Storage Property of Fe-Al Spinel Compounds: A Three-Way Catalytic Reaction over a Supported Rh Catalyst2021

    • Author(s)
      Fujita Kyoko、Asakura Hiroyuki、Hosokawa Saburo、Teramura Kentaro、Kobayashi Masaki、Fujita Koji、Tanaka Tsunehiro
    • Journal Title

      ACS Applied Materials & Interfaces

      Volume: 13 Issue: 21 Pages: 24615-24623

    • DOI

      10.1021/acsami.1c01486

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Dehydration of Electrochemically Protonated Oxide: SrCoO2 with Square Spin Tubes2021

    • Author(s)
      Li Hao-Bo、Kobayashi Shunsuke、Zhong Chengchao、Namba Morito、Cao Yu、Kato Daichi、Kotani Yoshinori、Lin Qianmei、Wu Maokun、Wang Wei-Hua、Kobayashi Masaki、Fujita Koji、Tassel Cedric、Terashima Takahito、Kuwabara Akihide、Kobayashi Yoji、Takatsu Hiroshi、Kageyama Hiroshi
    • Journal Title

      Journal of the American Chemical Society

      Volume: 143 Issue: 42 Pages: 17517-17525

    • DOI

      10.1021/jacs.1c07043

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] PbBi<sub>3</sub>O<sub>4</sub>X<sub>3</sub> (X = Cl, Br) with Single/Double Halogen Layers as a Photocatalyst for Visible-Light-Driven Water Splitting: Impact of a Halogen Layer on the Band Structure and Stability2021

    • Author(s)
      Suzuki Hajime、Higashi Masanobu、Tomita Osamu、Ishii Yusuke、Yamamoto Takafumi、Kato Daichi、Kotani Tetsu、Ozaki Daichi、Nozawa Shunsuke、Nakashima Kouichi、Fujita Koji、Saeki Akinori、Kageyama Hiroshi、Abe Ryu
    • Journal Title

      Chemistry of Materials

      Volume: 33 Issue: 24 Pages: 9580-9587

    • DOI

      10.1021/acs.chemmater.1c02876

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Structural Origin of Thermal Shrinkage in Soda-Lime Silicate Glass Below the Glass Transition Temperature: A Theoretical Investigation by Microsecond Timescale Molecular Dynamics Simulations2021

    • Author(s)
      Shimizu Masahiro、Murota Teppei、Urata Shingo、Takato Yoichi、Hamada Yuya、Koike Akio、Shimotsuma Yasuhiko、Fujita Koji、Miura Kiyotaka
    • Journal Title

      The Journal of Chemical Physics

      Volume: 155 Issue: 4 Pages: 044501-044501

    • DOI

      10.1063/5.0056464

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Perovskite-Type CuNbO3 Exhibiting Unusual Noncollinear Ferrielectric to Collinear Ferroelectric Dipole Order Transition2020

    • Author(s)
      Fukuda Masayuki、Yamada Ikuya、Murata Hidenobu、Hojo Hajime、Hernandez Olivier J.、Ritter Clemens、Tanaka Katsuhisa、Fujita Koji
    • Journal Title

      Chemistry of Materials

      Volume: 32 Issue: 12 Pages: 5016-5027

    • DOI

      10.1021/acs.chemmater.0c00444

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] ルドルスデン-ポッパー型スカンジウム酸化物における強誘電性2023

    • Author(s)
      川崎 龍志,Zhang Yang,Yi Wei,藤田 晃司,赤松 寛文,鳥居 周輝
    • Organizer
      日本セラミックス協会2023年年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] EuZrO3系固溶体の結晶構造と磁気的性質2023

    • Author(s)
      Li Sihui,鬼頭 拓也,小西 伸弥,藤田 晃司,田中 勝久
    • Organizer
      日本物理学会 2023年春季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 光触媒Bi12O17Cl2の結晶構造とトポケミカルフッ素化による構造変化2023

    • Author(s)
      加藤 大地,富田 修,鈴木 肇,鐘 承超,Tassel Cedric,石田 耕大,松崎 洋介,藤田 晃司,阿部 竜,陰山 洋,Nelson Ryky,Dronskowski Richard,Kirsanova A. Maria,Abakumov M. Artem,Brown M.Craig,藤井 孝太郎,八島 正知,佐伯 昭紀,及川 格,高村 仁,小林 洋治,Gorelik E. Tatiana
    • Organizer
      日本化学会 第103春季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 層状ペロブスカイト型構造を持つ極性酸化物の高圧合成と構造解析2022

    • Author(s)
      岡田 舜也,山田 幾也,Yi Wei,藤田 晃司
    • Organizer
      第16回日本セラミックス協会関西支部学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 酸素八面体回転エンジニアリングによる層状ペロブスカイト酸化物強誘電体の創製2021

    • Author(s)
      藤田晃司
    • Organizer
      日本セラミックス協会第34回秋季シンポジウム
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 新規ペロブスカイト型モリブデン酸化物の高圧合成2021

    • Author(s)
      益田菜優太,Yi Wei,藤田 晃司,山田 幾也
    • Organizer
      日本セラミックス協会関西支部学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] Cu+を含むペロブスカイト酸化物の高圧合成と構造解析2021

    • Author(s)
      高橋千宙,Yi Wei,藤田 晃司,山田 幾也
    • Organizer
      日本セラミックス協会関西支部学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] Oxygen Storage Property of Fe-Al Spinel Compounds: Three-Way Catalytic Reaction over Supported Rh Catalyst2021

    • Author(s)
      Hiroyuki Asakura, Kyoko Fujita, Saburo Hosokawa, Kentaro Teramura, Koji Fujita, Tsunehiro Tanaka
    • Organizer
      MRM2021 Materials Research Meeting
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] EuZrO3系固溶体の結晶構造と磁気的性質2021

    • Author(s)
      鬼頭拓也,村井俊介,藤田晃司,田中勝久
    • Organizer
      日本セラミックス協会 2021年年会
    • Related Report
      2020 Research-status Report
  • [Presentation] チタニアの光触媒効果を利用したAFM探針上への銀析出とチップ増強ラマン分光への応用2021

    • Author(s)
      矢野健司,高瀬祥吾,藤田晃司,板坂浩樹,西正之
    • Organizer
      日本セラミックス協会 2021年年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 酸素欠損ペロブスカイト層状化合物のエピタキシャル成長と強誘電性2020

    • Author(s)
      小林真己,藤田晃司
    • Organizer
      第37回強誘電体会議
    • Related Report
      2020 Research-status Report
  • [Presentation] 新規LiNbO3型酸化物の高圧合成と輸送特性2020

    • Author(s)
      細野舜,林数馬,山田幾也,藤田晃司
    • Organizer
      第61回高圧討論会
    • Related Report
      2020 Research-status Report
  • [Presentation] EuZrO3系固溶体の結晶構造と磁気的性質2020

    • Author(s)
      鬼頭拓也,村井俊介,藤田晃司,田中勝久
    • Organizer
      令和2年度 日本材料学会ナノ材料部門委員会 第1回研究会
    • Related Report
      2020 Research-status Report
  • [Remarks] 京都大学大学院工学研究科 材料化学専攻 機能材料設計学講座 藤田研究室

    • URL

      http://www1.kuic.kyoto-u.ac.jp

    • Related Report
      2022 Annual Research Report 2021 Research-status Report 2020 Research-status Report

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Published: 2020-08-03   Modified: 2024-01-30  

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