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Experimental study of the nonlinear responses due to the charge inhomogeneity in molecular conductors

Research Project

Project/Area Number 15K17688
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Condensed matter physics II
Research InstitutionTohoku University

Principal Investigator

ITOH Keisuke  東北大学, 金属材料研究所, 助教 (10733256)

Research Collaborator SASAKI Takahiko  
IGUCHI Satoshi  
HASHIMOTO Kenichiro  
IWAI Shinichiro  
ITOH Hirotake  
Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords有機伝導体 / 赤外分光 / 分子性導体 / 金属-絶縁体転移
Outline of Final Research Achievements

Macroscopic inhomogeneity due to the strongly correlated electrons in BEDT-TTF system was investigated by optical measurements. The phase separation between metal and insulator domains and its dynamics in charge ordered salts were observed by mid-infrared microscopy with synchrotron radiation. In addition, the spatial symmetry breaking in dimer-Mott type salts was investigated by femtosecond-pulse-induced terahertz emission spectroscopy.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (15 results)

All 2018 2017 2016 2015

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (11 results) (of which Int'l Joint Research: 5 results)

  • [Journal Article] Mesoscopic 2D Charge Transport in Commonplace PEDOT:PSS Films2018

    • Author(s)
      Y. Honma, K. Itoh, H. Masunaga, A. Fujiwara, T. Nishizaki, S. Iguchi, and T. Sasaki
    • Journal Title

      Advanced Electronic Materials

      Volume: 4 Issue: 2 Pages: 1700490-1700490

    • DOI

      10.1002/aelm.201700490

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Quantum-disordered state of magnetic and electric dipoles in an organic Mott system2017

    • Author(s)
      Shimozawa M.、Hashimoto K.、Ueda A.、Suzuki Y.、Sugii K.、Yamada S.、Imai Y.、Kobayashi R.、Itoh K.、Iguchi S.、Naka M.、Ishihara S.、Mori H.、Sasaki T.、Yamashita M.
    • Journal Title

      Nature Communications

      Volume: 8 Issue: 1 Pages: 1-6

    • DOI

      10.1038/s41467-017-01849-x

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Crystallization and vitrification of electrons in a glass-forming charge liquid2017

    • Author(s)
      Sasaki S.、Hashimoto K.、Kobayashi R.、Itoh K.、Iguchi S.、Nishio Y.、Ikemoto Y.、Moriwaki T.、Yoneyama N.、Watanabe M.、Ueda A.、Mori H.、Kobayashi K.、Kumai R.、Murakami Y.、M?ller J.、Sasaki T.
    • Journal Title

      Science

      Volume: 357 Issue: 6358 Pages: 1381-1385

    • DOI

      10.1126/science.aal3120

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 導電性高分子PEDOT/PSS 膜におけるメゾスコピック二次元伝導2017

    • Author(s)
      伊藤桂介
    • Journal Title

      C & I commun : colloid & interface communication : newsletter from DCSC

      Volume: 42 Pages: 24-27

    • NAID

      40021247058

    • Related Report
      2017 Annual Research Report
  • [Presentation] 6 fs単一サイクル光強電場による有機超伝導体の非線形電荷振動2018

    • Author(s)
      川上洋平, 天野辰哉, 米山雄登, 赤嶺勇人, 伊藤弘毅, 川口玄太, 山本浩史, 岸田英夫, 伊藤桂介, 佐々木孝彦, 石原純夫, 田中康寛, 米満賢治, 岩井伸一郎
    • Organizer
      日本物理学会 第73回年次大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 導電性高分子PEDOT:PSSにおける高度結晶化の時分割観測2018

    • Author(s)
      伊藤桂介, 増永啓康, 井口敏, 佐々木孝彦
    • Organizer
      日本物理学会 第73回年次大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Mesoscopic 2D Weak Localization in PEDOT/PSS Thick Films2017

    • Author(s)
      K. Itoh, Y. Honma, H. Masunaga, A. Fujiwara, T. Nishizaki, S. Iguchi, T. Sasaki
    • Organizer
      12th International Symposium on Crystalline Organic Metals, Superconductors and Magnets (ISCOM2017)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Ultrafast orbital excitation by 6 fs pulse in V2O32017

    • Author(s)
      Y. Kawakami, T. Kato, Y. Yoneyama, T. Amano, H. Itoh, K. Itoh, T. Sasaki, Y. Nakamura, H. Kishida, L. Cario, E. Janod, B. Corraze, M. Lorenc, S. Iwai
    • Organizer
      6th International Conferences on Photoinduced Phase Transitions (PIPT6)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 電荷ガラス形成物質θm -(BEDT-TTF)2TlZn(SCN)4における幾何学的フラストレーションがもたらすエネルギーランドスケープ2017

    • Author(s)
      佐々木智, 橋本顕一郎, 小林亮太, 伊藤桂介, 井口敏, 上田顕, 森初果, 小林賢介, 熊井玲児, 村上洋一, 佐々木孝彦
    • Organizer
      日本物理学会 第72回年次大会
    • Place of Presentation
      大阪大学
    • Related Report
      2016 Research-status Report
  • [Presentation] κ-H3(Cat-EDT-TTF)2におけるプロトン揺らぎがもたらすπ電子サーモクロミズム2016

    • Author(s)
      伊藤桂介, 橋本顕一郎, 小林亮太, 黒子めぐみ, 上田顕, 森初果, 井口敏, 佐々木孝彦
    • Organizer
      日本物理学会 第71回年次大会(2016年)
    • Place of Presentation
      Sendai, Miyagi, Japan
    • Year and Date
      2016-03-19
    • Related Report
      2015 Research-status Report
  • [Presentation] κ-H3(Cat-EDT-TTF)2におけるプロトン揺らぎがもたらすπ電子サーモクロミズムII2016

    • Author(s)
      伊藤桂介, 橋本顕一郎, 小林亮太, 上田顕, 森初果, 井口 敏, 佐々木孝彦
    • Organizer
      日本物理学会 2016年秋季大会
    • Place of Presentation
      金沢大学
    • Related Report
      2016 Research-status Report
  • [Presentation] Improvement of Out-of-plane Charge Transport in AcidTreated Highly Conductive PEDOT/PSS films2016

    • Author(s)
      K. Itoh, H. Honma, N. Asano, Y. Kato, H. Masunaga, A. Fujiwara, T. Sasaki
    • Organizer
      The International Conference on Science and Technology of Synthetic Metals in 2016
    • Place of Presentation
      Guangzhou, China
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Observation of spatial symmetry breaking in κ-(ET)2Cu2(CN)3 by terahertz emission spectroscopy2015

    • Author(s)
      K.Itoh, H. Itoh, N. Yoneyama, T. Sasaki, and S. Iwai
    • Organizer
      The International Chemical Congress of Pacific Basin Societies 2015 (Pacifichem2015)
    • Place of Presentation
      Honolulu, Hawaii, USA
    • Year and Date
      2015-12-18
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] κ-H3(Cat-EDT-TTF)2における水素結合がもたらす強誘電性II:分光測定2015

    • Author(s)
      伊藤桂介, 橋本顕一郎, 井口敏, 小林亮太, 上田顕, 森初果, 佐々木孝彦
    • Organizer
      日本物理学会 2015年秋季大会
    • Place of Presentation
      Osaka, Osaka, Japan
    • Year and Date
      2015-09-18
    • Related Report
      2015 Research-status Report
  • [Presentation] Spatial Symmetry Breaking in κ-(BEDT-TTF)2Cu2(CN)3 Investigated by Terahertz Emission Spectroscopy2015

    • Author(s)
      K.Itoh, H. Itoh, N. Yoneyama, T. Sasaki, and S. Iwai
    • Organizer
      11th International Symposium on Crystalline Organic Metals, Superconductors and Magnets (ISCOM2015)
    • Place of Presentation
      Bad Gogging, Germany
    • Year and Date
      2015-09-10
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research

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Published: 2015-04-16   Modified: 2020-05-15  

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