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Cross-over states in coherent thin films under self-generated stress fields and their functionality

Research Project

Project/Area Number 17K18970
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Research Field Materials engineering and related fields
Research InstitutionTohoku University

Principal Investigator

Toyohikjo Konno  東北大学, 金属材料研究所, 教授 (90260447)

Co-Investigator(Kenkyū-buntansha) 白石 貴久  東北大学, 金属材料研究所, 助教 (50758399)
木口 賢紀  東北大学, 金属材料研究所, 准教授 (70311660)
Project Period (FY) 2017-06-30 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords強誘電体 / 酸化物薄膜 / 透過電子顕微鏡 / エックス線回折 / 構造解析 / 電子顕微鏡 / 異相境界 / 相安定性 / 酸化物強誘電体 / 多層薄膜 / 多重臨界挙動
Outline of Final Research Achievements

Ferro-electric oxide family constitutes one of the indispensible functional material in civilized world. Examples include ultrasonic devices for sensing equipment, memory devices for IT society, and low energy harvester in energy-saving machines. It is widely known that the ferro-electric properties sensitively depends on the crystallographic structure, which in return, is a function of composition of the oxides and external stress fields. This study was initiated therefore in order to elucidate the effects of composition and applied stress fields on the stability of the ferro-electric oxide phases.
Thin perovskite-type oxide films have been fabricated on substrates with various lattice constants by using a chemical solution deposition method, and the structures of these films were examined by X-ray diffraction and transmission electron microscopy. Our results demonstrated that morphologic phase boundaries depends on both the character of transition metal and applied stress.

Academic Significance and Societal Importance of the Research Achievements

酸化物強誘電体材料は、エコーなどの超音波デバイス、記憶媒体であるメモリデバイス、あるいはエナジーハーベスターといった様々な分野で利用されている材料である。強誘電体特性は構造敏感な特性であり、酸化物の組成や応力場に依存する。本研究は特異な誘電特性をもつペロブスカイト型酸化物の相安定性に対する組成と応力場の関係を解明することを目的して開始された。
今回の研究により、強誘電体特性をデバイス等に薄膜形状で最大限の効率で応用する際の材料設計として、ペロブスカイト型酸化物を構成する遷移金属元素の大きさ及び基板の選択が重要な要素であることが判明した。

Report

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

    (26 results)

All 2020 2019 2018 2017

All Journal Article (12 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 12 results,  Open Access: 3 results) Presentation (14 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Deposition of orientation-controlled thick (K,Na)NbO<sub>3</sub> films on metal substrates by repeated hydrothermal deposition technique2019

    • Author(s)
      Yoshiharu ITO, Akinori TATEYAMA, Yoshiko NAKAMURA, Takao SHIMIZU, Minoru KUROSAWA, Hiroshi UCHIDA, Takahisa SHIRAISHI, Takanori KIGUCHI, Toyohiko J. KONNO, Mutsuo ISHIKAWA, Hiroshi. FUNAKUBO
    • Journal Title

      Journal of the Ceramic Society of Japan

      Volume: 127 Issue: 7 Pages: 478-484

    • DOI

      10.2109/jcersj2.19008

    • NAID

      130007672977

    • ISSN
      1348-6535, 1882-0743
    • Year and Date
      2019-07-01
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Interface structure of Pb(Zr,Ti)O3/MgO(001) epitaxial thin film in early stage of Stranski-Krastanov growth mode2019

    • Author(s)
      Kiguchi Takanori、Kodama Yumiko、Shimizu Takumi、Shiraishi Takahisa、Wakiya Naoki、Konno Toyohiko J.
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 58 Issue: SL Pages: SLLA08-SLLA08

    • DOI

      10.7567/1347-4065/ab3b13

    • NAID

      210000156954

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Growth of epitaxial (K, Na)NbO3 films with various orientations by hydrothermalmethod and their properties2019

    • Author(s)
      Yoshiharu Ito, Akinori Tateyama, Yoshiko Nakamura, Takao Shimizu, Minoru Kurosawa, Hiroshi Uchida, Takahisa Shiraishi, Takanori Kiguchi, Toyohiko J. Konno, Mutsuo Ishikawa, Hiroshi Funakubo.
    • Journal Title

      Jpn. J. Appl. Puys.

      Volume: 58 Issue: SL Pages: SLLB14-SLLB14

    • DOI

      10.7567/1347-4065/ab3958

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of Ta-substitution on the deposition of (K,Na)(Nb,Ta)O3 films by hydrothermal method2019

    • Author(s)
      Yuta Muto, Takahisa Shiraishi, Yoshiharu Ito, Akinori Tateyama, Hiroshi Uchida, Takanori Kiguchi Hiroshi Funakubo, and Toyohiko J. Konno
    • Journal Title

      Jpn. J. Appl. Phys.

      Volume: 58 Issue: SL Pages: SLLB12-SLLB12

    • DOI

      10.7567/1347-4065/ab3a18

    • NAID

      210000156946

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Formation of the orthorhombic phase in CeO2-HfO2 solid solution epitaxial thin films and their ferroelectric properties2019

    • Author(s)
      Shiraishi T.、Choi S.、Kiguchi T.、Shimizu T.、Funakubo H.、Konno T. J.
    • Journal Title

      Applied Physics Letters

      Volume: 114 Issue: 23 Pages: 232902-232902

    • DOI

      10.1063/1.5097980

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Preparation of {001}<sub>c</sub>-oriented epitaxial (K, Na)NbO<sub>3</sub> thick films by repeated hydrothermal deposition technique2018

    • Author(s)
      Takahisa SHIRAISHI, Yoshiharu ITO, Mutsuo ISHIKAWA, Hiroshi UCHIDA, Takanori KIGUCHI, Minoru K. KUROSAWA, Hiroshi FUNAKUBO, Toyohiko J. KONNO
    • Journal Title

      Journal of the Ceramic Society of Japan

      Volume: 126 Issue: 5 Pages: 281-285

    • DOI

      10.2109/jcersj2.17251

    • NAID

      130006730898

    • ISSN
      1348-6535, 1882-0743
    • Year and Date
      2018-05-01
    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Formation of polar phase in Fe-doped ZrO2 epitaxial thin films2018

    • Author(s)
      Sujin Choi, Takahisa Shiraishi, Takanori Kiguchi, Takao Shimizu, Hiroshi Funakubo, and Toyohiko J. Konno
    • Journal Title

      Applied Physics Letters

      Volume: 113 Issue: 26 Pages: 262903-262903

    • DOI

      10.1063/1.5063757

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Domain orientation relationship of orthorhombic and coexisting monoclinic phases of YO1.5-doped HfO2 epitaxial thin films2018

    • Author(s)
      Takanori Kiguchi, Takahisa Shiraishi, Takao Shimizu, Hiroshi Funakubo, and Toyohiko J. Konno
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 57 Issue: 11S Pages: 11UF16-11UF16

    • DOI

      10.7567/jjap.57.11uf16

    • NAID

      210000149825

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Fabrication of ferroelectric Fe doped HfO2 epitaxial thin films by ion-beam sputtering method and their characterization2018

    • Author(s)
      Takahisa Shiraishi, Sujin Choi, Takanori Kiguchi, Takao Shimizu, Hiroshi Uchida4, Hiroshi Funakubo, and Toyohiko J. Konno
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 57 Issue: 11S Pages: 11UF02-11UF02

    • DOI

      10.7567/jjap.57.11uf02

    • NAID

      210000149811

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effect of Local Elastic Field on Domain Structure and Its Formation of Ferroelectric Thin Films with Coherent-Interface2018

    • Author(s)
      木口 賢紀、舟窪 浩、今野 豊彦
    • Journal Title

      Materia Japan

      Volume: 57 Issue: 3 Pages: 97-105

    • DOI

      10.2320/materia.57.97

    • NAID

      130006410260

    • ISSN
      1340-2625, 1884-5843
    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Strain-induced nanostructure of Pb(Mg1/3Nb2/3)O-3-PbTiO3 on SrTiO3 epitaxial thin films with low PbTiO3 concentration2017

    • Author(s)
      Kiguchi, Takanori Fan, Cangyu Shiraishi, Takahisa Konno, Toyohiko J.
    • Journal Title

      Jpn. J. Appl. Phys.

      Volume: 56 Issue: 10S Pages: 10PB12-10PB12

    • DOI

      10.7567/jjap.56.10pb12

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Characterization of (111)-oriented epitaxial (K0.5Na0.5)NbO3 thick films deposited by hydrothermal method2017

    • Author(s)
      Takahisa Shiraishi1, Mutsuo Ishikawa2, Hiroshi Uchida3, Takanori Kiguchi1, Minoru K. Kurosawa4, Hiroshi Funakubo5 and Toyohiko J. Konno1
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 56 Issue: 10S Pages: 10PF04-10PF04

    • DOI

      10.7567/jjap.56.10pf04

    • NAID

      210000148381

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] 基板種に依存したPZT 薄膜のMPB 組織の変化2020

    • Author(s)
      木口賢紀, 清水匠, 白石貴久, 今野豊彦
    • Organizer
      日本セラミックス協会2020年年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] MPB組成におけるPZT薄膜の組織と結合状態に及ぼす基板種の影響2020

    • Author(s)
      木口賢紀, 清水匠, 白石貴久, 今野豊彦
    • Organizer
      第67回応用物理学会 春季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Structure and Electronic State of Misfit Strain Induced Morphotropic Phase Boundary Shift in Pb(Zr,Ti)O3 Epitaxial Thin2019

    • Author(s)
      Takanori Kiguchi, Takumi Shimizu, Takahisa Shiraishi, Toyohiko J. Konno
    • Organizer
      MRS 2019 Fall Meeting
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] PZT薄膜のMPB組成域における微細組織に及ぼす格子ミスマッチの影響2019

    • Author(s)
      清水匠, 粟飯原雅矢, 木口賢紀, 白石貴久, 今野豊彦
    • Organizer
      日本セラミックス協会第39回電子材料研究討論会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Effect of elastic field on domain structure of PZT thin films in MPB composition2019

    • Author(s)
      Takumi Shimizu, Takanori Kiguchi, Takahisa Shiraishi, Toyohiko J Konno
    • Organizer
      13th Pacific Rim Conference of Ceramic Societies
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 直方晶相ハフニア薄膜におけるドメイン構造2018

    • Author(s)
      木口賢紀
    • Organizer
      日本セラミックス協会2019年年会
    • Related Report
      2018 Research-status Report
  • [Presentation] PbTiO3 エピタキシャル薄膜の界面急峻性に及ぼす半導性SrTiO3 基板の影響2018

    • Author(s)
      木口賢紀
    • Organizer
      日本セラミックス協会2020年年会
    • Related Report
      2018 Research-status Report
  • [Presentation] Lattice mismatch effect on biaxial strain exerted on epitaxially-grown BiFeO32018

    • Author(s)
      木口賢紀
    • Organizer
      第66回応用物理学会 春季学術講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] 組成相境界近傍のPZTエピタキシャル薄膜における微細構造2018

    • Author(s)
      木口賢紀
    • Organizer
      第66回応用物理学会 春季学術講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] 強誘電体(Hf,Ce)O2薄膜の作製とその結晶構造評価2018

    • Author(s)
      木口賢紀
    • Organizer
      第66回応用物理学会 春季学術講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] STEM-EELS法による直方晶相ハフニア薄膜の結晶構造評価2018

    • Author(s)
      木口賢紀
    • Organizer
      第79回応用物理学会秋季学術講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] 直方晶相ハフニア薄膜のドメイン構造の電子エネルギー損失分光2018

    • Author(s)
      木口賢紀
    • Organizer
      日本セラミックス協会第31回秋季シンポジウム
    • Related Report
      2018 Research-status Report
  • [Presentation] 強誘電体HfO2基超薄膜のドメイン構造評価2017

    • Author(s)
      白石貴久、Sujin Choi、木口賢紀、今野豊彦
    • Organizer
      第73回日本顕微鏡学会学術講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] 固相エピタキシー法による強誘電体HfO2基薄膜の作製2017

    • Author(s)
      白石貴久,Sujin Choi,清水荘雄,舟窪浩,木口賢紀,今野豊彦
    • Organizer
      第78回応用物理学会秋季学術講演会
    • Related Report
      2017 Research-status Report

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Published: 2017-07-21   Modified: 2021-02-19  

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