Investigation of effect of domain structure to large piezoelectricity in ferroelectric-antiferroelectric phase boundary

• Project/Area Number: 25889025
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Inorganic materials/Physical properties
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: YASUI Shintaro 東京工業大学, 応用セラミックス研究所, 助教 (40616687)
• Project Period (FY): 2013-08-30 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000); Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
• Keywords: 相転移 / 強誘電体 / 圧電体 / ドメイン / コンビナトリアル / 薄膜

Outline of Final Research Achievements

We focused on what is the most effective thing of piezoelectric materials with superior piezoelectricity. Domain structure around ferroelectric -antiferroelectric phase boundary in (Bi,Sm)FeO3 library films was investigated for deeply understanding of origin of large piezoelectricity. Comparing with the case of common ferroelectric-ferroelectric phase boundary, one domain in ferroelectric-antiferroelectric materials around morphotropic phase boundary showed huge piezoelectricity, however driving force of domain switching, e.g. coercive field, was larger than that in ferroelectric-ferroelectric materials.

Research Products

• [Presentation] Perovskite型構造圧電体薄膜の開発～未来材料へ向けて～ (2015)
  • Author(s): 安井 伸太郎, 舟窪 浩, 伊藤 満
  • Organizer: 日本セラミックス協会2015年 年会
  • Place of Presentation: 岡山大学
  • Year and Date: 2015-03-20
  • Invited
• [Presentation] Perovskite型構造圧電体薄膜の開発～脱ペロブスカイトへ向けて～”セラミックス協会若手講演会 (2015)
  • Author(s): 安井 伸太郎
  • Organizer: セラミックス協会若手講演会
  • Place of Presentation: 岡山大学
  • Year and Date: 2015-03-17
  • Invited
• [Presentation] ペロブスカイト型強誘電体/圧電体薄膜の開発および特性、そして脱ペロブスカイト化に向けて (2015)
  • Author(s): 安井 伸太郎, 舟窪 浩, 伊藤 満
  • Organizer: 2015年誘電体スピントロニクス研究会
  • Place of Presentation: 東北大学
  • Year and Date: 2015-01-05
• [Presentation] Combinatorial Study on Piezoelectricity in (Bi,Sm)FeO3 Thin Film System (2014)
  • Author(s): Shintaro Yasui, Yoshitaka Ehara, Takahisa Shiraishi, Takao Shimizu, Hiroshi Funakubo, Mitsuru Itoh, Yasuhiko Imai, Hiroo Tajiri, Osami Sakata, and Ichiro Takeuchi
  • Organizer: AMF-AMEC-2014
  • Place of Presentation: Shanghai, China
  • Year and Date: 2014-08-28
• [Presentation] Design of Lead-free Ferroelectric/Piezoelectric Thin Films (2014)
  • Author(s): Shintaro Yasui
  • Organizer: Future Ferroelectrics 2014
  • Place of Presentation: Hiroshima
  • Year and Date: 2014-08-21
  • Invited
• [Presentation] Giant Piezoelectricity of (Bi,Sm)FeO3 Epitaxial Thin Films (2014)
  • Author(s): Shintaro Yasui
  • Organizer: 10th Japan-Korea Conference on Ferroelectrics (JKC-FE10)
  • Place of Presentation: Hiroshima
  • Year and Date: 2014-08-20
  • Invited
• [Presentation] MOCVD法により作製したBiFeO3基固溶体 エピタキシャル薄膜の結晶構造と圧電特性 (2014)
  • Author(s): 安井伸太郎
  • Organizer: マルチフェロイック討論会
  • Place of Presentation: 東北大学
  • Invited
• [Presentation] 強誘電体－反強誘電体相境界におけるエピタキシャル薄膜の圧電挙動 (2014)
  • Author(s): 安井 伸太郎, 江原 祥隆, 白石 貴久, 清水 荘雄, 舟窪 浩, 伊藤 満, 今井 康彦, 田尻 寛男, 坂田 修身, Ichiro Takeuchi
  • Organizer: 日本物理学会第69回年次大会
  • Place of Presentation: 東海大学
• [Presentation] Piezoresponse behavior at a Morphotropic Phase Boundary in (Bi,Sm)FeO3 Films (2014)
  • Author(s): Shintaro Yasui, Yoshitaka Ehara, Takahisa Shiraishi, Takao Shimizu, Hiroshi Funakubo, Mitsuru Itoh, Yasuhiko Imai, Hiroo Tajiri, Osami Sakata, and Ichiro Takeuchi
  • Organizer: Electro Materials and Applications 2014 (EMA2014)
  • Place of Presentation: Orlando
  • Invited
• [Presentation] 強誘電体－反強誘電体相境界を有する(Bi,Sm)FeO3エピタキシャル薄膜の電界印加時における圧電挙動の観察 (2013)
  • Author(s): 安井 伸太郎, 江原 祥隆, 白石 貴久, 清水 荘雄, 舟窪 浩, 伊藤 満, 今井 康彦, 田尻 寛男, 坂田 修身, Ichiro Takeuchi
  • Organizer: 日本セラミックス協会第26回秋季シンポジウム
  • Place of Presentation: 信州大学
• [Presentation] 強誘電体－反強誘電体相境界を有する(Bi,Sm)FeO3エピタキシャル薄膜の電界印加時における圧電挙動の観察 (2013)
  • Author(s): 安井 伸太郎, 江原 祥隆, 白石 貴久, 清水 荘雄, 舟窪 浩, 伊藤 満, 今井 康彦, 田尻 寛男, 坂田 修身, Ichiro Takeuchi
  • Organizer: 第74回応用物理学会秋季学術講演会
  • Place of Presentation: 同志社大学
• [Presentation] Enhanced Piezoresponse in (Bi,Sm)FeO3 Films at a Morphotropic Phase Boundary (2013)
  • Author(s): Shintaro Yasui
  • Organizer: The 16th US-Japan seminar on dielectric and piezoelectric ceramics
  • Place of Presentation: North Carolina
• [Presentation] Enhanced Piezoresponse in (Bi,Sm)FeO3 Films at a Morphotropic Phase Boundary for Piezo-MEMS Devices (2013)
  • Author(s): Shintaro Yasui, Yoshitaka Ehara, Takahisa Shiraishi, Takao Shimizu, Hiroshi Funakubo, Mitsuru Itoh, Yasuhiko Imai, Hiroo Tajiri, Osami Sakata, and Ichiro Takeuchi
  • Organizer: Material Research Society 2013 fall meeting(MRS-2013)
  • Place of Presentation: Boston
• [Remarks] 東京工業大学 応用セラミックス研究所 伊藤谷山研究室
  • URL: http://www.msl.titech.ac.jp/~itohlab/