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Exploration of magnetoelectric effect in dimer-type molecular conductors

Research Project

Project/Area Number 16K17731
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Condensed matter physics II
Research InstitutionWaseda University (2017-2019)
Tohoku University (2016)

Principal Investigator

Naka Makoto  早稲田大学, 高等研究所, 講師(任期付) (60708527)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Discontinued (Fiscal Year 2019)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords電気磁気効果 / 有機導体 / 分子性固体 / マルチフェロイクス / 電子相関 / ペロブスカイト型酸化物 / スピントロニクス / 強相関電子系 / 誘電体 / 磁性体 / 有機物 / 物性理論 / 誘電体物性 / 磁性
Outline of Final Research Achievements

We conducted theoretical studies aiming to develop the magneto-electric effect, that had been studied only for inorganic compounds, in organic conductors composed of light elements such as hydrogen and carbon. We clarified that various types of magneto-electric coupling phenomena, in which magnetic and dielectric properties are strongly correlated, are caused by cooperative effects of spin and charge long-range orders and local structures peculiar to organic conductors, e.g., molecular dimer and hydrogen bond. In addition, as an extension of this study, we got the basic idea that leads to spintronics using organic conductors.

Academic Significance and Societal Importance of the Research Achievements

本研究の結果は、分子ダイマー構造や水素結合といった有機化合物に普遍的な構造が、物質の誘電性と磁性を結合させるカギとなることを示しており、有機化合物を用いたマルチフェロイクスの可能性を拓く成果である。有機物質は材料として無機物質にはない多くのメリット(軽量、柔軟、安価、希少元素を含まない)を持つため、希少資源に乏しい我が国にとってその機能開拓は重要な課題の一つである。本研究は有機材料において電気磁気効果という新たな機能の創発を可能にするものであり、応用の観点からも意義がある。

Report

(4 results)
  • 2019 Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (31 results)

All 2019 2018 2017 2016 Other

All Journal Article (10 results) (of which Peer Reviewed: 10 results,  Open Access: 2 results,  Acknowledgement Compliant: 2 results) Presentation (19 results) (of which Int'l Joint Research: 8 results,  Invited: 7 results) Remarks (2 results)

  • [Journal Article] π電子とプロトンの連動による新しい量子液体状態―絶対零度まで揺らぎ続ける電気・磁気双極子―2019

    • Author(s)
      下澤雅明、上田顕、橋本顕一郎、中惇
    • Journal Title

      固体物理

      Volume: 54 Pages: 43-54

    • NAID

      40021787191

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Electronic state and optical response in a hydrogen-bonded molecular conductor2018

    • Author(s)
      Naka Makoto、Ishihara Sumio
    • Journal Title

      Physical Review B

      Volume: 97 Issue: 24

    • DOI

      10.1103/physrevb.97.245110

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Magnetoelectric Effect in a Spin-State Transition System2018

    • Author(s)
      Naka Makoto、Mizoguchi Eriko、Nasu Joji、Ishihara Sumio
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 87 Issue: 6 Pages: 063709-063709

    • DOI

      10.7566/jpsj.87.063709

    • NAID

      210000134852

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Systematic charge distribution changes in Bi- and Pb-3d transition metal perovskites2018

    • Author(s)
      Azuma Masaki、Sakai Yuki、Nishikubo Takumi、Mizumaki Masaichiro、Watanuki Tetsu、Mizokawa Takashi、Oka Kengo、Hojo Hajime、Naka Makoto
    • Journal Title

      Dalton Transactions

      Volume: 47 Issue: 5 Pages: 1371-1377

    • DOI

      10.1039/c7dt03244g

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Magnetoelectric Effect in a Spin-State Transition System2018

    • Author(s)
      Makoto Naka, Eriko Mizoguchi, Joji Nasu, and Sumio Ishihara
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 印刷中

    • NAID

      210000134852

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Spin and Charge Fluctuations near Metal-Insulator Transition in Dimer-Type Molecular Solid2017

    • Author(s)
      Naomichi Sato, Tsutomu Watanabe, Makoto Naka, Sumio Ishihara
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 86 Issue: 5 Pages: 053701-053701

    • DOI

      10.7566/jpsj.86.053701

    • NAID

      40021185611

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [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 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Quantum Melting of Magnetic Order in an Organic Dimer-Mott Insulating System2016

    • Author(s)
      M. Naka and S. Ishihara
    • Journal Title

      Phys. Rev. B

      Volume: 93 Issue: 19

    • DOI

      10.1103/physrevb.93.195114

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Phase diagram and collective excitation in excitonic insulator: from the orbital physics viewpoint2016

    • Author(s)
      J. Nasu, T. Watanabe, M. Naka, and S. Ishihara
    • Journal Title

      Physical Review B

      Volume: 93 Issue: 20

    • DOI

      10.1103/physrevb.93.205136

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Magnetic Field Effects in a Correlated Electron System with Spin-State Degree of Freedom -Implication of an Excitonic Insulator-2016

    • Author(s)
      T. Tatsuno, E. Mizoguchi, J. Nasu, M. Naka, S. Ishihara
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 85 Issue: 8 Pages: 083706-083706

    • DOI

      10.7566/jpsj.85.083706

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Presentation] π・d電子系の電荷揺らぎと機能物性2018

    • Author(s)
      中惇
    • Organizer
      第1回埼玉大学物性コロキウム
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Spin current generation in κ-type molecular compounds2018

    • Author(s)
      中惇
    • Organizer
      4th International Conference on Functional Materials Science 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 分子性反強磁性体におけるスピン流生成2018

    • Author(s)
      中惇
    • Organizer
      物性研理論セミナー
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Theory of valence transition in perovskite-type transition metal oxides with A-site valence skipping elements2018

    • Author(s)
      M. Naka
    • Organizer
      The 2nd International Symposium on Negative Thermal Expansion and Related Materials
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 固体酸素における強磁場・高圧下の電子状態と光学応答2018

    • Author(s)
      佐藤直道, 中惇, 石原純夫
    • Organizer
      2017年度日本物理学会春季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Novel Proton-Electron Coupled State in an Organic Molecular Solid kappa-X3(Cat-EDT-TTF)22017

    • Author(s)
      M. Naka, S. Ishihara
    • Organizer
      28th International Conference on Low Temperature Physics
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 固体酸素における強磁場下の分子・電子状態2017

    • Author(s)
      佐藤直道, 中惇, 石原純夫
    • Organizer
      2017年度日本物理学会秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Electronic State and Charge Excitation in Proton-Electron Coupled System2017

    • Author(s)
      M. Naka, S. Ishihara
    • Organizer
      12th International Symposium on Crystalline Organic Metals, Super Conductors and Magnets
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Electronic and Molecular Structures of Solid Oxygen2017

    • Author(s)
      N. Sato, M. Naka, S. Ishihara
    • Organizer
      12th International Symposium on Crystalline Organic Metals, Super Conductors and Magnets
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Electronic State and Charge Excitation in Proton-Electron Coupled System2017

    • Author(s)
      M. Naka
    • Organizer
      New Frontier of Molecular Materials
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] π電子-プロトン結合系の電子状態と光学応答2017

    • Author(s)
      中惇
    • Organizer
      金研WS「多自由度が協奏する分子システムの科学」
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 固体酸素における電子・分子状態と光学応答2017

    • Author(s)
      佐藤直道, 中惇, 石原純夫
    • Organizer
      金研WS「多自由度が協奏する分子システムの科学」
    • Related Report
      2017 Research-status Report
  • [Presentation] Bi・Pbペロブスカイト系の価数転移と磁気誘電現象2016

    • Author(s)
      中惇
    • Organizer
      強相関電子系理論の最前線
    • Place of Presentation
      勝浦観光ホテル, 和歌山県, 那智勝浦町
    • Year and Date
      2016-12-20
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] 原子価スキッパーを含むペロブスカイト型酸化物における価数転移の理論2016

    • Author(s)
      中惇,妹尾仁嗣,求幸年
    • Organizer
      日本物理学会
    • Place of Presentation
      金沢大学, 石川県, 金沢市
    • Year and Date
      2016-09-13
    • Related Report
      2016 Research-status Report
  • [Presentation] スピン状態自由度を持つ相関電子系における電子格子結合と磁気誘電性2016

    • Author(s)
      中惇,溝口瑛莉子,那須譲治,石原純夫
    • Organizer
      日本物理学会
    • Place of Presentation
      金沢大学, 石川県, 金沢市
    • Year and Date
      2016-09-13
    • Related Report
      2016 Research-status Report
  • [Presentation] Magnetoelectric effect in dimer-type molecular compounds2016

    • Author(s)
      Makoto Naka
    • Organizer
      Gordon research conference
    • Place of Presentation
      Mount Holyoke College, Boston, Massachusetts, USA
    • Year and Date
      2016-08-14
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Magnetoelectric effect in dimer-type molecular compounds2016

    • Author(s)
      Makoto Naka
    • Organizer
      Gordon research seminar
    • Place of Presentation
      Mount Holyoke College, Boston, Massachusetts, USA
    • Year and Date
      2016-08-13
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] ダイマー構造を持つ分子性固体における電気磁気効果2016

    • Author(s)
      中惇
    • Organizer
      平成28年度物性研究所短期研究会 パイ電子系物性科学の最前線
    • Place of Presentation
      物性研究所, 千葉県, 柏市
    • Year and Date
      2016-08-08
    • Related Report
      2016 Research-status Report
  • [Presentation] バレンススキッパーを含む遷移金属酸化物における価数転移2016

    • Author(s)
      中惇
    • Organizer
      豊田理化学研究所・特定課題研究「多元秩序制御による熱・体積機能の開拓」
    • Place of Presentation
      東京工業大学, 東京都, 港区
    • Related Report
      2016 Research-status Report
    • Invited
  • [Remarks] 研究者個人ホームページ

    • URL

      https://sites.google.com/site/nakamakotonaka/

    • Related Report
      2018 Annual Research Report
  • [Remarks] リサーチマップ

    • URL

      https://researchmap.jp/7000017782/

    • Related Report
      2018 Annual Research Report

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Published: 2016-04-21   Modified: 2021-02-19  

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