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Polarimetric neutron spin echo spectroscopy for the study of magnetic relaxation mechanism

Research Project

Project/Area Number 19K20601
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 80040:Quantum beam science-related
Research InstitutionThe University of Tokyo (2021)
Kyoto University (2019-2020)

Principal Investigator

Oda Tatsuro  東京大学, 物性研究所, 助教 (70782308)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords中性子散乱 / 中性子スピンエコー / 偏極中性子 / スピン偏極解析 / 磁性ナノ粒子 / 磁気緩和 / 磁気緩和現象 / 中性子スピンエコー法 / MIEZE / TOF-MIEZE
Outline of Research at the Start

中性子は磁性研究のための強力なプローブであり,スピン偏極解析によって試料の磁気特性のみに着目した構造解析や分光を行うことができる.試料の原子レベルの運動状態を調べることができる「中性子スピンエコー分光法」とスピン偏極解析を組み合わせることで,異なる緩和機構を弁別した高精度な磁気緩和現象の観測手法に関する研究開発を行う.

Outline of Final Research Achievements

A combination of neutron spin echo spectroscopy and spin polarimetry was studied to establish a spectroscopic method that distinguishes different kinetic modes related to magnetism. Specifically, we analyzed the dynamics of magnetic relaxation in an iron oxide nanoparticles dispersed in solution (magnetic fluid) by neutron spin echo measurements separating spin flip scattering and nuclear scattering. Neutron beam experiments were performed at the BL06 neutron resonance spin echo spectrometer of the Material and Life Science Experimental Facility (MLF) at the Japan Proton Accelerator Research Complex (J-PARC). We analyzed the small angle neutron scattering profiles and spin-echo signals depending on the polarity of a helium spin filter and discuss the effects on the spin echo signal caused by different relaxation modes.

Academic Significance and Societal Importance of the Research Achievements

多くの物質のダイナミクスは様々な運動モードを反映したものであり,これらが混在した系を観測することになる.このような複雑な運動状態をモデル化し,系統的に理解するために,異なる運動モードを識別したダイナミクス測定が必要とされる.本研究によって開発された分光手法は,磁性に関する運動モードを抽出したダイナミクス測定につながる.

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (14 results)

All 2021 2020 2019

All Journal Article (8 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 8 results,  Open Access: 6 results) Presentation (6 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Phase correction method in a wide detector plane for MIEZE spectroscopy with pulsed neutron beams2021

    • Author(s)
      Oda Tatsuro、Endo Hitoshi、Ohshita Hidetoshi、Seya Tomohiro、Yasu Yoshiji、Nakajima Taro、Hino Masahiro、Kawabata Yuji
    • Journal Title

      Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

      Volume: 1012 Pages: 165616-165616

    • DOI

      10.1016/j.nima.2021.165616

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Double-focusing geometry for phase correction in neutron resonance spin-echo spectroscopy2021

    • Author(s)
      Funama F.、Tasaki S.、Hino M.、Oda T.、Endo H.
    • Journal Title

      Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

      Volume: 1010 Pages: 165480-165480

    • DOI

      10.1016/j.nima.2021.165480

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Study of Focusing TOF-MIEZE Spectrometer with Small-angle Neutron Scattering2021

    • Author(s)
      Funama Fumiaki、Hino Masahiro、Oda Tatsuro、Endo Hitoshi、Hosobata Takuya、Yamagata Yutaka、Tasaki Seiji、Kawabata Yuji
    • Journal Title

      JPS Conference Proceedings

      Volume: 33 Pages: 011088-011088

    • DOI

      10.7566/jpscp.33.011088

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Crystallization of magnetic skyrmions in MnSi investigated by neutron spin echo spectroscopy2020

    • Author(s)
      Nakajima Taro、Oda Tatsuro、Hino Masahiro、Endo Hitoshi、Ohishi Kazuki、Kakurai Kazuhisa、Kikkawa Akiko、Taguchi Yasujiro、Tokura Yoshinori、Arima Taka-hisa
    • Journal Title

      Physical Review Research

      Volume: 2 Issue: 4 Pages: 043393-043393

    • DOI

      10.1103/physrevresearch.2.043393

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Tuning Neutron Resonance Spin-Echo Spectrometers with Pulsed Beams2020

    • Author(s)
      Oda Tatsuro、Hino Masahiro、Endo Hitoshi、Seto Hideki、Kawabata Yuji
    • Journal Title

      Physical Review Applied

      Volume: 14 Issue: 5 Pages: 054032-054032

    • DOI

      10.1103/physrevapplied.14.054032

    • NAID

      120006898104

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Development and application of a 3He Neutron Spin Filter at J-PARC2020

    • Author(s)
      Okudaira T.、Oku T.、Ino T.、Hayashida H.、Kira H.、Sakai K.、Hiroi K.、Takahashi S.、Aizawa K.、Endo H.、Endo S.、Hino M.、Hirota K.、Honda T.、Ikeda K.、Kakurai K.、Kambara W.、Kitaguchi M.、Oda T.、Ohshita H.、Otomo T.、Shimizu H.M.、Shinohara T.、Suzuki J.、Yamamoto T.
    • Journal Title

      Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

      Volume: 977 Pages: 164301-164301

    • DOI

      10.1016/j.nima.2020.164301

    • NAID

      120006882449

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Current Status of the Neutron Resonance Spin Echo Spectrometer on BL06 "VIN ROSE" at MLF, J-PARC2019

    • Author(s)
      Hitoshi Endo, Tatsuro Oda, Masahiro Hino, Takuya Hosobata
    • Journal Title

      Physica B

      Volume: 564 Pages: 91-93

    • DOI

      10.1016/j.physb.2018.11.069

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Experimental test of 3He neutron-spin filter in MIEZE spectrometer2019

    • Author(s)
      H. Hayashida, M. Hino, H. Endo, T. Oku, T. Okudaira, K. Sakai, T. Oda
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 1316 Issue: 1 Pages: 012013-012013

    • DOI

      10.1088/1742-6596/1316/1/012013

    • NAID

      120006876598

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] パルス時間幅の観点からみた中性子スピンエコー分光法の特徴2021

    • Author(s)
      小田達郎、日野正裕、 遠藤仁、瀬戸秀紀、川端祐司
    • Organizer
      日本原子力学会2021年春の年会 2021
    • Related Report
      2021 Annual Research Report
  • [Presentation] J-PARC MLF BL06MIEZE型スピンエコー分光器の現状と今後の開発2020

    • Author(s)
      [2]小田達郎,日野正裕,遠藤仁,大下英敏,瀬谷智洋,安芳次,瀬戸秀紀,川端祐司
    • Organizer
      日本中性子科学会第20回年会
    • Related Report
      2020 Research-status Report
  • [Presentation] Neutron Resonance Spin-Echo Spectrometers at BL06 VIN ROSE at J-PARC MLF2019

    • Author(s)
      T. Oda, M. Hino, H. Endo, F. Funama, Y. Kawabata, H. Seto
    • Organizer
      European Conference on Neutron Scattering (ECNS2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] J-PARC MLF BL06 VIN ROSE のMIEZE スピンエコー分光器の現状2019

    • Author(s)
      小田達郎,日野正裕,遠藤仁,船間史晃,川端祐司
    • Organizer
      日本原子力学会2019年秋の大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Current status and perspective of the MIEZE spin echo spectrometer of BL06 at J-PARC MLF [poster]2019

    • Author(s)
      T. Oda, M. Hino, H. Endo, F. Funama, H. Ohshita, T. Seya, Y. Yasu, Y. Kawabata, H. Seto
    • Organizer
      J-PARC Symposium 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Current status of the MIEZE spin echo spectrometer at BL06 at J-PARC MLF [poster]2019

    • Author(s)
      T. Oda,M. Hino, H. Endo, F. Funama
    • Organizer
      Asia-Oceania Conference on Neutron Scattering (AOCNS2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2023-01-30  

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