Establishment of real-space dynamical analysis by inelastic neutron scattering experiment and its application to condensed matter physics

• Project/Area Number: 19K12648
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 80040:Quantum beam science-related
• Research Institution: Japan Atomic Energy Agency
• Principal Investigator: Nakamura Mitsutaka 国立研究開発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, 研究主幹 (00370445)
• Project Period (FY): 2019-04-01 – 2023-03-31
• Project Status: Completed (Fiscal Year 2022)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: 実空間ダイナミクス解析 / 中性子非弾性散乱実験 / 非晶質 / ネットワークガラス

Outline of Research at the Start

中性子非弾性散乱実験による実空間ダイナミクス解析手法の確立と物性研究への応用を本研究の主目的と定め、研究開発を進める。従来、実空間へのフーリエ変換に耐えうる動的構造因子S(Q,E)を得るためには、大量の試料量と膨大な測定時間が必要であったが、J-PARCの大強度中性子ビームと新規解析アルゴリズムの双方を活用することによってこれらの課題を克服する。本研究課題を通じて確立される実空間ダイナミクス解析手法を切り口として、中距離相関がキーとなるネットワークガラスの過剰低エネルギー励起の起源解明に挑む。

Outline of Final Research Achievements

Inelastic neutron scattering (INS) experiments provide the dynamic structure factors by adding the energy axis to the "reciprocal lattice space". We conducted the research activities to realize an analytical method to obtain useful physical property information by converting the INS data into "real space" (real-space dynamics analysis method).
Specifically, we evaluated the background by the measurement using the standard sample and took measures to reduce it, developed the high-speed T0 chopper to for the purpose of high spatial resolution measurement, modified the inverse Monte Carlo calculation code using the molecular mechanics method. We have succeeded in establishing elemental technologies for the practical use of real-space dynamics analysis method.

Academic Significance and Societal Importance of the Research Achievements

実空間において局所的な乱れが存在する場合、逆格子空間を通じて局所乱れに起因する構造やダイナミクスを議論することはほぼ不可能である。したがって、本研究計画が目指してきた実空間ダイナミクス解析手法の確立は、局所ダイナミクスが新奇物性の発現のキーとなる先端的研究において不可欠の研究ツールをもたらすものであり、従来にない新たな視点での物性研究を開拓しうる。

Research Products

• [Journal Article] Magnon mode transition in real space (2022)
  • Author(s): Iida Kazuki、Kodama Katsuaki、Inamura Yasuhiro、Nakamura Mitsutaka、Chang Lieh-Jeng、Shamoto Shin-ichi
  • Journal Title: Scientific Reports Volume: 12 Issue: 1 Pages: 206631-7
  • DOI: 10.1038/s41598-022-22555-9
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Hydrogen vibration excitations of ZrH1.8 and TiH1.84 up to 21 GPa by incoherent inelastic neutron scattering (2022)
  • Author(s): Hattori T.、Nakamura M.、Iida K.、Machida A.、Sano-Furukawa A.、Machida S.、Arima H.、Ohshita H.、Honda T.、Ikeda K.、Otomo T.
  • Journal Title: Physical Review B Volume: 106 Issue: 13
  • DOI: 10.1103/physrevb.106.134309
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Possible future upgrades of the direct-geometry chopper spectrometer 4SEASONS (2022)
  • Author(s): Kajimoto Ryoichi、Nakamura Mitsutaka、Kamazawa Kazuya、Inamura Yasuhiro、Iida Kazuki、Ikeuchi Kazuhiko、Ishikado Motoyuki
  • Journal Title: EPJ Web of Conferences Volume: 272 Pages: 02007-02007
  • DOI: 10.1051/epjconf/202227202007
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Observation of Adsorbed Hydrogen Species on Supported Metal Catalysts by Inelastic Neutron Scattering (2021)
  • Author(s): Yoshida Hisao、Yamamoto Akira、Hosokawa Saburo、Yamazoe Seiji、Kikkawa Soichi、Hara Kenji、Nakamura Mitsutaka、Kamazawa Kazuya、Tanaka Tsunehiro
  • Journal Title: Topics in Catalysis Volume: 64 Issue: 9-12 Pages: 660-671
  • DOI: 10.1007/s11244-021-01448-7
  • Peer Reviewed / Open Access
• [Journal Article] Detection of hydroxyl and hydride functional groups in a ceria crystal under hydrogen reduction (2021)
  • Author(s): Matsukawa Takeshi、Iida Kazuki、Nakamura Mitsutaka、Ishigaki Toru
  • Journal Title: CrystEngComm Volume: 23 Issue: 12 Pages: 2355-2359
  • DOI: 10.1039/d1ce00130b
  • Peer Reviewed / Open Access
• [Journal Article] Identification of hydrogen species on Pt/Al2O3 by in situ inelastic neutron scattering and their reactivity with ethylene (2021)
  • Author(s): Yamazoe Seiji、Yamamoto Akira、Hosokawa Saburo、Fukuda Ryoichi、Hara Kenji、Nakamura Mitsutaka、Kamazawa Kazuya、Tsukuda Tatsuya、Yoshida Hisao、Tanaka Tsunehiro
  • Journal Title: Catalysis Science & Technology Volume: 11 Issue: 1 Pages: 116-123
  • DOI: 10.1039/d0cy01968b
  • Peer Reviewed / Open Access
• [Journal Article] Temporally decoherent and spatially coherent vibrations in metal halide perovskites (2020)
  • Author(s): Zhang Depei、Hu Xiao、Chen Tianran、Abernathy Douglas L.、Kajimoto Ryoichi、Nakamura Mitsutaka、Kofu Maiko、Foley Benjamin J.、Yoon Mina、Choi Joshua J.、Lee Seung-Hun
  • Journal Title: Physical Review B Volume: 102 Issue: 22
  • DOI: 10.1103/physrevb.102.224310
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Energy resolution and neutron flux of the 4SEASONS spectrometer revisited (2020)
  • Author(s): Kajimoto Ryoichi、Nakamura Mitsutaka、Iida Kazuki、Kamazawa Kazuya、Ikeuchi Kazuhiko、Inamura Yasuhiro、Ishikado Motoyuki
  • Journal Title: Journal of Neutron Research Volume: - Issue: 2-3 Pages: 1-9
  • DOI: 10.3233/jnr-200146
  • Peer Reviewed / Open Access
• [Journal Article] Applicability and limitations of G(r, E) analysis transformed from the inelastic neutron scattering data (2019)
  • Author(s): Nakamura Mitsutaka、Kikuchi Tatsuya、Kawakita Yukinobu
  • Journal Title: Physica B: Condensed Matter Volume: 567 Pages: 61-64
  • DOI: 10.1016/j.physb.2019.01.002
  • NAID: 120007153037
  • Peer Reviewed / Open Access
• [Journal Article] Status of neutron spectrometers at J-PARC (2019)
  • Author(s): Ryoichi Kajimoto, Tetsuya Yokoo, Mitsutaka Nakamura, Yukinobu Kawakita, Masato Matsuura, Hitoshi Endo, Hideki Seto, Shinichi Itoh, Kenji Nakajima, Seiko Ohira-Kawamura
  • Journal Title: Physica B Volume: 562 Pages: 148-152
  • DOI: 10.1016/j.physb.2018.11.061
  • NAID: 120007153036
  • Peer Reviewed / Open Access
• [Journal Article] Quantum dynamics of hydrogen in the iron-based superconductor LaFeAsO0.9D0.1 measured with inelastic neutron spectroscopy (2019)
  • Author(s): Jun-ichi Yamaura, Haruhiro Hiraka, Soshi Iimura, Yoshinori Muraba, Joonho Bang, Kazuhiko Ikeuchi, Mitsutaka Nakamura, Yasuhiro Inamura, Takashi Honda, Masatoshi Hiraishi, Kenji M. Kojima, Ryosuke Kadono, Yoshio Kuramoto, Youichi Murakami, Satoru Matsuishi, and Hideo Hosono
  • Journal Title: Phys. Rev. B Volume: 99 Issue: 22
  • DOI: 10.1103/physrevb.99.220505
  • NAID: 120007168972
  • Peer Reviewed / Open Access
• [Presentation] 実空間でのマグノンモード転移 (2023)
  • Author(s): 飯田一樹，樹神克明，稲村泰弘，中村充孝，張烈錚，社本真一
  • Organizer: 日本物理学会 2023年春季大会
• [Presentation] Current status and issues in the direct geometry time-of-flight spectrometer 4SEASONS (2022)
  • Author(s): Ryoichi Kajimoto, Mitsutaka Nakamura, Kazuya Kamazawa, Yasuhiro Inamura, Kazuki Iida, Kazuhiko Ikeuchi, and Motoyuki Ishikado
  • Organizer: Conference on Quasielastic Neutron Scattering and Workshop on Inelastic Neutron Spectrometers (QENS/WINS 2022)
  • Int'l Joint Research
• [Presentation] 非弾性中性子散乱装置「四季」の高度化の検討 (2022)
  • Author(s): 梶本亮一、中村充孝、蒲沢和也、稲村泰弘、飯田一樹、池内和彦、石角元志
  • Organizer: 日本中性子科学会 第22回年会
• [Presentation] Observation of strong four-phonon interaction in α-GeTe at high temperature (2022)
  • Author(s): Yongheng Li, Bin Wei, Jiawang Hong, Xinyue Zhang , Yanzhong Pei, Qi Ren, Chao Yang, Ziyan Gao, Kazuya Kamazawa, Mitsutaka Nakamura, Feihao Pan, and Jinchen Wang
  • Organizer: The 12th International Conference on Neutron Scattering (ICNS 2022)
  • Int'l Joint Research
• [Presentation] 非弾性中性子散乱装置「四季」の整備と利用状況 (2022)
  • Author(s): 梶本 亮一、中村 充孝、蒲沢 和也、稲村 泰弘、飯田 一樹、池内 和彦、石角 元志
  • Organizer: 2021年度量子ビームサイエンスフェスタ
• [Presentation] High-Pressure Neutron Experiments in J-PARC (2021)
  • Author(s): T. Hattori, A. Sano-Furukawa, S. Machida, J. Abe, K. Funakoshi, H. Arima, M. Nakamura, K. Iida, T. Yamada, K. Ohishi, S. Ohira-Kawamura, T. Kikuchi
  • Organizer: 10th Asian Conference on High Pressure Research
  • Int'l Joint Research / Invited
• [Presentation] 中性子非弾性散乱によるPdナノ薄膜中水素の振動状態の解析 (2021)
  • Author(s): 小澤 孝拓、古府 麻衣子、中村 充孝、飯田 一樹、大友 季哉、山室 修、清水 亮太、一杉 太郎、福谷 克之
  • Organizer: 表面真空学会2021年度学術講演会
• [Presentation] フォノン散乱断面積の第一原理的評価とそのベンチマーク (2021)
  • Author(s): 村井 直樹、Peng Wu、古府 麻衣子、中島 健次、中村 充孝、梶本 亮一
  • Organizer: 第21回 日本中性子科学会年会
• [Presentation] 非弾性中性子散乱装置「四季」の現状 (2020)
  • Author(s): 梶本 亮一、中村 充孝、蒲沢 和也、稲村 泰弘、 飯田 一樹、 池内 和彦、石角 元志
  • Organizer: 日本中性子科学会第20回年会
• [Presentation] 鉄系超伝導体Fe(Te0.5Se0.5)のレゾナンスモードのQ依存性 (2020)
  • Author(s): 石角 元志、樹神 克明、梶本 亮一、中村 充孝、稲村 泰弘、池内 和彦、新井 正敏、社本 真一
  • Organizer: 日本物理学会 2020年秋季大会
• [Presentation] 非弾性中性子散乱装置「四季」の利用と整備状況 (2020)
  • Author(s): 梶本 亮一、中村 充孝、蒲沢 和也、稲村 泰弘、飯田 一樹、池内 和彦、石角 元志
  • Organizer: 2020年度 量子ビームサイエンスフェスタ
• [Presentation] Investigations of the cause of unexpected elastic tail observed in the Fermi chopper spectrometer 4SEASONS (2019)
  • Author(s): M. Nakamura, R. Kajimoto, K. Oikawa, T. Shinohara, K. Aizawa, S. Harjo, T. Iwahashi, K. Kamazawa, K. Ikeuchi, K. Iida, Y. Inamura, M. Ishikado
  • Organizer: The 23rd meeting of the International Collaboration on Advanced Neutron Sources (ICANS XXIII)
  • Int'l Joint Research
• [Presentation] Elastic and Dynamical Structural Properties of La and Mn-Doped SrTiO3 Studied by Neutron Scattering and Their Relation with Thermal Conductivities (2019)
  • Author(s): R. Kajimoto, M. Nakamura, N. Murai, S. Shamoto, T. Honda, K. Ikeda, T. Otomo, H. Hata, T. Eto, M. Noda, H. Kuwahara, T. Okuda
  • Organizer: Materials Research Meeting 2019 (MRM 2019
  • Int'l Joint Research
• [Presentation] Time-of-Flight Direct-Geometry Neutron Spectrometer 4SEASONS at J-PARC (2019)
  • Author(s): R. Kajimoto, M. Nakamura, K. Kamazawa, Y. Inamura, K. Ikeuchi, K. Iida, and M. Ishikado
  • Organizer: The 3rd J-PARC Symposium (J-PARC 2019
  • Int'l Joint Research
• [Presentation] Structural instability-assisted Li-migration in solid-state electrolyte (La,Li)TiO3 (2019)
  • Author(s): Masato Matsuura, Hiroki Moriwake, Yasuyuki Fujiwara, Ryoichi Kajimoto, Mitsutaka Nakamura, Koji Ohara, and Yukinobu Kawakita
  • Organizer: Materials Research Meeting 2019 (MRM 2019)
  • Int'l Joint Research
• [Presentation] 鉄系超伝導体Fe(Te0.5Se0.5)の磁気共鳴のQ依存性 (2019)
  • Author(s): 石角元志，樹神克明，梶本亮一，中村充孝，稲村泰弘，池内和彦，新井正敏，社本真一
  • Organizer: 日本物理学会第75回年次大会
• [Remarks] スピンの揺らぎの直接観測に世界で初めて成功
  • URL: https://j-parc.jp/c/press-release/2022/12/07001084.html