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Investigation on dynamics of organic conductors by cooperative use of pulsed neutron and muon

Research Project

Project/Area Number 23600012
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Quantum beam science
Research InstitutionJapan Atomic Energy Agency

Principal Investigator

KAWAMURA Seiko  独立行政法人日本原子力研究開発機構, 原子力科学研究部門 J-PARCセンター, 副主任研究員 (70360518)

Co-Investigator(Renkei-kenkyūsha) KATO Reizo  独立行政法人理化学研究所, 加藤分子物性研究室, 主任研究員 (80169531)
TANIGUCHI Hiromi  埼玉大学, 理工学研究科, 准教授 (50323374)
SATOH Kazuhiko  埼玉大学, 理工学研究科, 教授 (60225927)
Project Period (FY) 2011-04-28 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords分子性導体 / 中性子非弾性散乱 / 中性子散乱
Outline of Final Research Achievements

In this research, we aimed to apply inelastic neutron scattering (INS) measurement to studies on dynamics in the organic conductors using a chopper spectrometer installed at J-PARC.
We succeeded observation of a full picture of the phonon spectrum in an organic conductor, beta'-(BEDT-TTF)2ICl2, by INS for the first time. It was found there that a low-energy optical mode is strongly coupled with the charge and spin degrees of freedom. We also tried direct observation of magnetic excitation in this material. However, we have not yet succeeded its observation because the magnetic intensity rapidly decreases due to the spin widely distributed on a molecule.

Report

(5 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (23 results)

All 2014 2013 2012 2011

All Journal Article (14 results) (of which Peer Reviewed: 14 results) Presentation (9 results)

  • [Journal Article] Spin-Orbit Fluctuations in Frustrated Heavy-Fermion Metal LiV2O42014

    • Author(s)
      K. Tomiyasu, K. Iwasa, H. Ueda, S. Niitaka, H. Takagi, S. Ohira-Kawamura, T. Kikuchi, Y. Inamura, K. Nakajima, and K. Yamada
    • Journal Title

      Phys. Rev. Lett.

      Volume: 113 Issue: 23 Pages: 236402-236402

    • DOI

      10.1103/physrevlett.113.236402

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spin-Nematic Interaction in the Multiferroic Compound Ba2CoGe2O72014

    • Author(s)
      M. Soda, M. Matsumoto, M. Mansson, S. Ohira-Kawamura, K. Nakajima, R. Shiina, and T. Masuda
    • Journal Title

      Phys. Rev. Lett

      Volume: Vol. 112 Issue: 12 Pages: 127205-127205

    • DOI

      10.1103/physrevlett.112.127205

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mode-distribution analysis of quasielastic neutron scattering and application to liquid water2013

    • Author(s)
      T. Kikuchi, K. Nakajima, S. Ohira-Kawamura, Y. Inamura, O. Yamamuro, M. Kofu, Y. Kawakita, K. Suzuya, M. Nakamura and M. Arai
    • Journal Title

      Phys. Rev. E

      Volume: 87 Issue: 6

    • DOI

      10.1103/physreve.87.062314

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Hyperfine structure of magnetic excitations in a Tb-based single-molecule magnet studied by high-resolution neutron spectroscopy2013

    • Author(s)
      M. Kofu, O. Yamamuro, T. Kajiwara, Y. Yoshimura, M. Nakano, K. Nakajima, S. Ohira-Kawamura, T. Kikuchi and Y. Inamura
    • Journal Title

      Phys. Rev. B

      Volume: 88

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Recent improvement of the signal-to-noise ratio on the Fermi chopper spectrometer 4SEASONS2013

    • Author(s)
      R. Kajimoto, M. Nakamura, Y. Inamura, K. Ikeuchi, S. Ji, K. Nakajima, S. Ohira-Kawamura, W. Kambara, M. Sawabe, A. Kamiya, K. Inoue, T. Futagami, M. Kobayashi, A. Kishi, K. Satou, K. Aizawa and M. Arai
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 82 Issue: Suppl.A Pages: SA032-SA032

    • DOI

      10.7566/jpsjs.82sa.sa032

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Magnetic relaxations in a Tb-based single molecule magnet studied by quasielastic neutron scattering2013

    • Author(s)
      M. Kofu, T. Kajiwara, J. S. Gardner, G. G. Simeoni, M. Tyagi, A.Faraone, K. Nakajima, S. Ohira-Kawamura, M. Nakano, O. Yamamuro
    • Journal Title

      Chemical Physics

      Volume: 427 Pages: 147-152

    • DOI

      10.1016/j.chemphys.2013.10.004

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Well-defined crystal field splitting schemes and non-Kramers doublet ground states of f electrons in PrT2Zn20 (T=Ir, Rh, and Ru)2013

    • Author(s)
      K. Iwasa
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 82 Issue: 4 Pages: 043707-043707

    • DOI

      10.7566/jpsj.82.043707

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effects of Mg, Ag, and Al substitutions on magnetic excitations in the triangular-lattice antiferromagnet CuCrO22013

    • Author(s)
      R. Kajimoto, K. Nakajima, S. Ohira-Kawamura, Y. Inamura, K. Kakurai, T. Hokazono, S. Oozono and T. Okuda
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 82 Issue: 5 Pages: 054702-054702

    • DOI

      10.7566/jpsj.82.054702

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Quasi-elastic neutron scattering of dense molecular liquid selenium bromide2012

    • Author(s)
      H. Shimakura, Y. Kawakita, Y. Inamura, T. Kikuchi, H. Ueno, M. Nakamura, K. Nakamura, S. Ohira-Kawamura, K. Shibata, M. Arai and S. Takeda
    • Journal Title

      J. Phys: Conf. Ser.

      Volume: 340 Pages: 012080-012080

    • DOI

      10.1088/1742-6596/340/1/012080

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Neutron scattering study of Ag, Mg and Al substitution effects on the magnetic excitations in CuCrO22012

    • Author(s)
      R. Kajimoto, K. Nakajima, S. Ohira-Kawamura, Y. Inamura, K. Kakurai, M. Arai, T. Hokazono, S. Oozono and T. Okuda
    • Journal Title

      J. Phys. Conf. Ser.

      Volume: 400 Issue: 3 Pages: 032034-032034

    • DOI

      10.1088/1742-6596/400/3/032034

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Magnetic and non-magnetic phases of a quantum spin liquid2011

    • Author(s)
      F. L. Pratt, P. J. Baker, S. J. Blundell, T. Lancaster, S. Ohira-Kawamura, C. Baines, Y. Shimizu, K. Kanoda, I. Watanabe and G. Saito
    • Journal Title

      Nature

      Volume: 471 Pages: 612-616

    • Related Report
      2011 Research-status Report
    • Peer Reviewed
  • [Journal Article] ToF inelastic neutron scattering studies on quantum spin systems (CuCl)LaB2O7 (B = Nb, Ta)2011

    • Author(s)
      S. Ohira-Kawamura, K. Nakajima, Y. Inamura, Y. Tsujimoto, A. Kitada, F. Takeiri, H. Kageyama, Y. Ajiro, M. Nishi and K. Kakurai
    • Journal Title

      J. Phys.: Conf. Ser.

      Volume: 320

    • Related Report
      2011 Research-status Report
    • Peer Reviewed
  • [Journal Article] The Fermi chopper spectrometer 4SEASONS at J-PARC2011

    • Author(s)
      R. Kajimoto, M. Nakamura, Y. Inamura, F. Mizuno, K. Nakajima, S. Ohira-Kawamura, T. Yokoo, T. Nakatani, R. Maruyama, K. Soyama, K. Shibata, K. Suzuya, S. Sato 他10名
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 80

    • Related Report
      2011 Research-status Report
    • Peer Reviewed
  • [Journal Article] AMATERAS : A cold-neutron disk chopper spectrometer2011

    • Author(s)
      K. Nakajima, S. Ohira-Kawamura, T. Kikuchi, M. Nakamura, R. Kajimoto, Y. Inamura, N. Takahashi, K. Aizawa, K. Suzuya, K. Shibata, T. Nakatani, K. Soyama, R. Maruyama 他13名
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 80

    • NAID

      130007516674

    • Related Report
      2011 Research-status Report
    • Peer Reviewed
  • [Presentation] Phonon Modes in a Molecular Dimer-Mott Insulator Studied by Inelastic Neutron Scattering2014

    • Author(s)
      (3)S. Ohira-Kawamura, M. Matsuura, S. Iguchi, T. Sasaki, H. Taniguchi, A. Kubota, K. Satoh, Y. Inamura, T. Kikuchi and K. Nakajima
    • Organizer
      2nd International Symposium of J-PARC (J-PARC2014)
    • Place of Presentation
      Tsukuba, Japan
    • Year and Date
      2014-07-13 – 2014-07-15
    • Related Report
      2014 Annual Research Report
  • [Presentation] Impurity-induced effect on a spin-Peierls compound TiOBr2014

    • Author(s)
      (4)S. Ohira-Kawamura, S. Kuroiwa, H. Kawashima, M. Yamazawa, R. Kadono, K. Ohishi and J. Akimitsu
    • Organizer
      The 13th International Conference on Muon Spin Rotation, Relaxation and Resonance (μSR2014)
    • Place of Presentation
      Grindelwald, Switzerland
    • Year and Date
      2014-06-01 – 2014-06-06
    • Related Report
      2014 Annual Research Report
  • [Presentation] Inelastic neutron scattering study on phonon spectra in dimer-Mott insulator β’-(BEDT-TTF)2ICl22013

    • Author(s)
      S. Ohira-Kawamura, M. Matsuura, S. Iguchi, T. Sasaki, H. Taniguchi, A. Kubota, K. Satoh, Y. Inamura, T. Kikuchi, Y. Kawakita and K. Nakajima
    • Organizer
      The 10th International Symposium on Crystalline Organic Metals Superconductors and Ferromagnets (ISCOM2013)
    • Place of Presentation
      Montreal (Canada)
    • Related Report
      2013 Research-status Report
  • [Presentation] 中性子非弾性散乱によるダイマーモット絶縁体β'-(BEDT-TTF)2ICl2のフォノン異常の観測2013

    • Author(s)
      河村聖子、松浦直人、井口敏、佐々木孝彦、谷口弘三、窪田愛子、佐藤一彦、稲村泰弘、菊地龍弥、川北至信、中島健次
    • Organizer
      日本物理学会2013年秋季大会
    • Place of Presentation
      徳島大学三島キャンパス(徳島県徳島市)
    • Related Report
      2013 Research-status Report
  • [Presentation] 有機ダイマーモット絶縁体β'-(BEDT-TTF)2ICl2におけるフォノン異常2013

    • Author(s)
      河村聖子、松浦直人、井口敏、佐々木孝彦、谷口弘三、窪田愛子、佐藤一彦、稲村泰弘、菊地龍弥、川北至信、中島健次
    • Organizer
      日本中性子科学会年会
    • Place of Presentation
      ちば県民プラザ(千葉県柏市)
    • Related Report
      2013 Research-status Report
  • [Presentation] Current status of sample environment in MLF J-PARC2012

    • Author(s)
      S. Ohira-Kawamura, W. Kambara, Y. Yamauchi, T. Yokoo, K. Munakata, Y. Kawakita, T. Nakatani, S. Torii, R. Kajimoto, K. Nakajima, K. Kaneko, S. Takata, H. Nojiri, Y. Narumi and M. Arai
    • Organizer
      7th International Workshop on Sample Environment at Neutron Scattering Facilities
    • Place of Presentation
      Sydney (Australia)
    • Related Report
      2012 Research-status Report
  • [Presentation] Phonon modes reflecting ferroelectricity in β’-(BEDT-TTF)2ICl2 studied by inelastic neutron scattering2012

    • Author(s)
      S. Ohira-Kawamura, M. Matsuura, S. Iguchi, T. Sasaki, H. Taniguchi, T. Kikuchi and K. Nakajima
    • Organizer
      International Symposium on Materials Science Opened by Molecular Degrees of Freedom (MDF2012)
    • Place of Presentation
      Miyazaki (Japan)
    • Related Report
      2012 Research-status Report
  • [Presentation] Towards observation of magnetic excitation in organic conductor2011

    • Author(s)
      S. Ohira-Kawamura, K. Nakajima, Y. Inamura, T. Kikuchi and H. Taniguchi
    • Organizer
      1st Asia-Oceania Conference of Neutron Scattering (AOCNS)
    • Place of Presentation
      Tsukuba (Japan)
    • Related Report
      2011 Research-status Report
  • [Presentation] Current status and future plan of sample environment in MLF, J-PARC2011

    • Author(s)
      S. Ohira-Kawamura, T. Yokoo, W. Kambara, K. Munakata, R. Kajimoto, T. Nakatani, K. Kaneko, Y. Kawakita, S. Takata, K. Nakajima, S. Torii, Y. Yamauchi, J. Suzuki (他6名)
    • Organizer
      1st Asia-Oceania Conference of Neutron Scattering (AOCNS)
    • Place of Presentation
      Tsukuba (Japan)
    • Related Report
      2011 Research-status Report

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Published: 2011-08-05   Modified: 2019-07-29  

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