Imaging of nuclear and electron densities in the ferroelectric phase of multiferroic materials

• Project/Area Number: 24340064
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Condensed matter physics I
• Research Institution: Tohoku University
• Principal Investigator: KIMURA Hiroyuki 東北大学, 多元物質科学研究所, 教授 (50312658)
• Co-Investigator(Renkei-kenkyūsha): NODA Yukio 東北大学, 多元物質科学研究所, 名誉教授 (80127274) ; KIYAMAGI Ryoji 日本原子力機構, J-PARCセンター, 研究員 (50521770) ; SAKAKURA Terutoshi 東北大学, 多元物質科学研究所, 助教 (30611785)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥20,020,000 (Direct Cost: ¥15,400,000、Indirect Cost: ¥4,620,000); Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000); Fiscal Year 2013: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000); Fiscal Year 2012: ¥13,910,000 (Direct Cost: ¥10,700,000、Indirect Cost: ¥3,210,000)
• Keywords: 磁気誘起強誘電性 / 精密構造解析 / 中性子・放射光 / 強誘電変位 / マルチフェロイック

Outline of Final Research Achievements

Crystal and magnetic structure in the ferroelectric phase of multiferroic RMn2O5 (R=rare-earth) has been clarified by a complementary use of neutron as well as synchrotron X-ray diffraction. Extremely high precision measurement of diffraction intensity has been developed and applied to synchrotron X-ray diffraction experiment. By this method, crystal symmetry in the ferroelectric phase of RMn2O5 system was firstly revealed. We have also firstly discovered the magnetic order of Sm and Mn magnetic moment in SmMn2O5 by resonant X-ray magnetic scattering. The proposed magnetic structure of SmMn2O5 suggests that there exists novel mechanism of magnetically induced ferroelectricity, which has not been proposed experimentally nor theoretically so far.

Research Products

• [Journal Article] Polarized neutron spectrometer for inelastic experiments at J-PARC - Status of POLANO Project (2015)
  • Author(s): Tetsuya Yokoo, Kenji Ohoyama, Shinichi Itoh, Kazuaki Iwasa, Naokatsu Kaneko, Junichi Suzuki, Manabu Ohkawara, Kazuya Aizawa, Seiji Tasaki, Takashi Ino, Kaoru Taketani, Shigeru Ishimoto, Masayasu Takeda, Takayuki Oku, Hiroshi Kira, Kouichi Hayashi, Hiroyuki Kimura, and Taku J. Sato
  • Journal Title: EPJ Web of Conferences Volume: 83 Pages: 03018-03018
  • DOI: 10.1051/epjconf/20158303018
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Construction of Polarized Inelastic Neutron Spectrometer in J-PARC (2014)
  • Author(s): T. Yokoo, K. Ohoyama, S. Itoh, J. Suzuki, M. Nanbu, N. Kaneko, K. Iwasa, T. J. Sato, H. Kimura and M. Ohkawara
  • Journal Title: J. Phys.: Conf. Series Volume: 502 Pages: 1-5
  • DOI: 10.1088/1742-6596/502/1/012046
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Role of magnetic chirality in polarization flip upon a commensurate-incommensurate magnetic phase transition in YMn2O5 (2013)
  • Author(s): S. Wakimoto, H. Kimura, Y. Sakamoto, M. Fukunaga, Y. Noda, M. Takeda, and K. Kakurai
  • Journal Title: Phys. Rev. B Volume: 88
  • Peer Reviewed
• [Journal Article] 単結晶による中性子構造物性研究の実際 (2013)
  • Author(s): 野田幸男,木村宏之,李彰熙
  • Journal Title: 日本中性子科学会誌波紋 Volume: 23 Pages: 238-244
  • NAID: 130007510532
  • Peer Reviewed
• [Journal Article] マルチフェロイック物質と磁気秩序誘起強誘電性 (2013)
  • Author(s): 野田幸男,木村宏之
  • Journal Title: セラミックス Volume: 48 Pages: 491-496
  • Peer Reviewed
• [Journal Article] Negative magnetostrictive magnetoelectric coupling of BiFeO3 (2013)
  • Author(s): S. Lee, M. T. Fernandez-Diaz, H. Kimura, Y. Noda, D. T. Adroja, S. Lee, J. Park, V. Kiryukhin, S.-W. Cheong, M. Mostovoy, and J.-G. Park
  • Journal Title: Phys. Rev. B Volume: 88
  • Peer Reviewed
• [Presentation] 価電子一個の空間分布を捉える単結晶X線回折法の開発 (2015)
  • Author(s): 坂倉輝俊，中野隆裕，木村宏之，石川喜久，野田幸男，岸本俊二，田中清明，竹中康之，十倉好紀，宮坂茂樹
  • Organizer: H26年度アライアンス成果報告会
  • Place of Presentation: 九州大学
  • Year and Date: 2015-04-21
• [Presentation] 共鳴・非共鳴X線磁気散乱によるマルチフェロイック物質SmMn2O5の磁気秩序観測 (2015)
  • Author(s): 石井祐太，御手洗誠，坂倉輝俊，堀尾哲，野田幸男，木村宏之，本田孝志，中尾裕則，村上洋一
  • Organizer: 第70回日本物理学会年会
  • Place of Presentation: 早稲田大学
  • Year and Date: 2015-03-22
• [Presentation] X線回折法のための多電子系波動関数解析ソフトウェアの開発 (2015)
  • Author(s): 坂倉輝俊，中野隆裕，木村宏之，石川喜久，野田幸男，岸本俊二，十倉好紀，宮坂茂樹
  • Organizer: 第70回日本物理学会年会
  • Place of Presentation: 早稲田大学
  • Year and Date: 2015-03-22
• [Presentation] 電子ドープ型超伝導体Pr1.4La0.6CuO4+δの還元前後での構造変化 (2015)
  • Author(s): 御手洗誠，坂倉輝俊，木村宏之，堤健之，藤田全基，鬼柳亮嗣，岸本俊二
  • Organizer: 第70回日本物理学会年会
  • Place of Presentation: 早稲田大学
  • Year and Date: 2015-03-22
• [Presentation] T’構造銅酸化物Pr1.4La0.6CuO4の磁気形状因子に対するアニール効果の研究 (2015)
  • Author(s): 堤健之，藤田全基，佐藤研太朗，木村宏之，鬼柳亮嗣
  • Organizer: 第3回物構研サイエンスフェスタ
  • Place of Presentation: つくば
  • Year and Date: 2015-03-17
• [Presentation] 超精密単結晶構造解析による銅酸化物高温超伝導体の結晶構造解明 (2015)
  • Author(s): 木村宏之，坂倉輝俊，御手洗誠
  • Organizer: 附置研究所間アライアンス 「次世代エレクトロニクス」グループ(G1)分科会
  • Place of Presentation: 名古屋
  • Year and Date: 2015-03-06
• [Presentation] 波動関数2乗の空間分布測定技術の開発 (2015)
  • Author(s): 坂倉輝俊，中野隆裕，木村宏之，石川喜久，野田幸男，十倉好紀，宮坂茂樹，田中清明，竹中康之，岸本俊二
  • Organizer: 日本放射光学会第28回年会
  • Place of Presentation: 立命館大学
  • Year and Date: 2015-01-10
  • Invited
• [Presentation] Observation of magnetic order in Multiferroic SmMn2O5 studied by resonant-and non-resonant X-ray magnetic scattering (2015)
  • Author(s): Y. Ishii, M. Mitarashi, T. Sakakura, S. Horio, Y. Noda, H. Kimura, T. Honda, H. Nakao, and Y. Murakami
  • Organizer: 14th Korea-Japan Meeting on Neutron Science
  • Place of Presentation: Ibataki
  • Year and Date: 2015-01-08
• [Presentation] Development of wave-function-based refinement software for single crystal X-ray diffraction (2015)
  • Author(s): T. Sakakura, T. Nakano, H. Kimura, Y. Ishikawa, Y. Noda, Y. Tokura, S. Miyasaka, K. Tanaka, Y. Takenaka, and S. Kishimoto
  • Organizer: 14th Korea-Japan Meeting on Neutron Science
  • Place of Presentation: Ibaraki
  • Year and Date: 2015-01-08
  • Invited
• [Presentation] 単結晶 XRD 法のための d,f 電子系解析ソフトウェアの開発 (2014)
  • Author(s): 坂倉輝俊，木村宏之
  • Organizer: 日本結晶学会平成26年度年会
  • Place of Presentation: 東京大学
  • Year and Date: 2014-11-01
  • Invited
• [Presentation] Neutron diffraction study of magnetism and ferroelectricityin RMn2O5 (R = rare-earth, Bi, Y) multiferroics (2014)
  • Author(s): H. Kimura
  • Organizer: 12th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity
  • Place of Presentation: Riga, Latvia
  • Year and Date: 2014-09-29
  • Invited
• [Presentation] Ferroelectric and Electronic Property of RFe2O4 (2014)
  • Author(s): N. Ikeda, T. Nagata, M. Fukunaga, T. Kambe, J. Kano, H. Kimura, P.-E. Janolin, J.-M. Kiat
  • Organizer: 12th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity
  • Place of Presentation: Riga, Latvia
  • Year and Date: 2014-09-29
  • Invited
• [Presentation] Progress on POLANO Spectrometer for Polarized Neutron Experiment (2014)
  • Author(s): T. Yokoo, K. Ohoyama, S. Itoh, K. Iwasa, N. Kaneko, M. Ohkawara, S. Tasaki, T. Ino, K. Taketani, S. Ishimoto, K. Aizawa, J. Suzuki, M. Nanbu, M. Takeda, T. Oku, K. Hayashi, H. Kimura, T. J. Sato
  • Organizer: International Collaboration on Advanced Neutron Sources XXI
  • Place of Presentation: Mito
  • Year and Date: 2014-09-29
• [Presentation] Recent Progress on New Polarized Neutron Spectrometer POLANO (2014)
  • Author(s): T. Yokoo, K. Ohoyama, S. Itoh, K. Iwasa, N. Kaneko, M. Okawara, S. Tasaki, T. Ino, K. Taketani, S. Ishimoto, K. Aizawa, J. Suzuki, M. Nanbu, M. Takeda, T. Oku, K. Hayashi, H. Kimura and T. J. Sato
  • Organizer: Polarised Neutrons for Condensed Matter Investigations (PNCMI) 2014
  • Place of Presentation: Sydney, Australia
  • Year and Date: 2014-09-15
  • Invited
• [Presentation] Polarisation Analysis Neutron Spectrometer, POLANO, at J-PARC (2014)
  • Author(s): K. Ohoyamaa, T. Yokooc, S. Itoh, K. Iwasa, M. Ohkawara, N. Kaneko, M. Nanbu, H. Hayashida, T. Ino, T. Oku, H. Kira, S. Tasaki, M. Takedad, K. Hayashi, H. Kimura and T. J. Sato
  • Organizer: Polarised Neutrons for Condensed Matter Investigations (PNCMI) 2014
  • Place of Presentation: Sydney, Australia
  • Year and Date: 2014-09-15
  • Invited
• [Presentation] 単結晶X線回折による波動関数結合係数決定法の開発と応用 (2014)
  • Author(s): 坂倉輝俊，中野隆裕，木村宏之，野田幸男，石川喜久，十倉好紀，宮坂茂樹
  • Organizer: 日本物理学会2014年秋季大会
  • Place of Presentation: 中部大学
  • Year and Date: 2014-09-07 – 2014-09-10
• [Presentation] 中性子散乱によるマルチフェロイック物質YMn4+(Mn1-xGax)3+O5の磁気励起の観測 (2014)
  • Author(s): 泉谷義寿，石井祐太，古川圭作，野田幸男，木村宏之，脇本秀一，池内和彦，中島健次，梶本亮一
  • Organizer: 日本物理学会2014年秋季大会
  • Place of Presentation: 中部大学
  • Year and Date: 2014-09-07 – 2014-09-10
• [Presentation] Importance of multiple diffraction avoidance for charge density observation (2014)
  • Author(s): T. Sakakura, T. Nakano, H. Kimura, Y. Noda, Y. Ishikawa, Y. Takenaka, K. Tanaka, S. Kishimoto, Y. Tokura, S. Miyasaka
  • Organizer: The 23rd Congress and General Assembly of the International Union of Crystallography (IUCr 2014)
  • Place of Presentation: Montreal, Canada
  • Year and Date: 2014-08-04
  • Invited
• [Presentation] Neutron diffraction study of magnetic structure in multiferroics under pressure (2014)
  • Author(s): H. Kimura, S. Fujiyama, J. Lin, M. Fukunaga, Y. Noda, H. Hiraka, S.-A. Kim, C.-H. Lee
  • Organizer: The 23rd Congress and General Assembly of the International Union of Crystallography (IUCr 2014)
  • Place of Presentation: Montreal, Canada
  • Year and Date: 2014-08-04
  • Invited
• [Presentation] 中性子・放射光X線の相補利用による磁性体・誘電体の構造物性研究 (2014)
  • Author(s): 木村宏之
  • Organizer: 誘電体セミナー・物性談話会
  • Place of Presentation: 名工大
  • Year and Date: 2014-07-26
  • Invited
• [Presentation] Neutron Diffraction Analysis of Dehydrated State of Disodium Inosine 5′-monophosphate Hydrate (2014)
  • Author(s): S. Yamamura, T. Moyoshi, T. Hanashima, T. Ohhara, H. Kimura, Y. Noda, and Y. Sugawara
  • Organizer: J-PARC symposium 2014
  • Place of Presentation: Tsukuba
  • Year and Date: 2014-07-02
• [Presentation] Neutron diffraction study of multiferroic 153EuMn2O5 using FONDER and FCD (2014)
  • Author(s): H. Kimura, S. Fujiyama, J. Lin, M. Fukunaga, Y. Noda, In.-H. Oh, S.-A. Kim, and C.-H.Lee
  • Organizer: 13th Japan-Korea Meeting on Neutron Science
  • Place of Presentation: Buyeo, Korea
  • Invited
• [Presentation] JRR-3MとHANAROを利用したマルチフェロイック物質の中性子散乱研究 (2014)
  • Author(s): 木村宏之
  • Organizer: 物性研短期研究会「海外施設を舞台とした中性子散乱共同利用研究」
  • Place of Presentation: 柏市
  • Invited
• [Presentation] 単結晶X線回折を用いた3d遷移金属における波動関数結合系数決定法の開発 (2014)
  • Author(s): 坂倉輝俊，木村宏之
  • Organizer: 日本物理学会第69回年次大会
  • Place of Presentation: 東海大学
• [Presentation] 放射光と中性子を用いた過剰ドープLSCOの磁気励起の研究 (2014)
  • Author(s): 脇本秀一，石井賢司，木村宏之，藤田全基，梶本亮一，池内和彦，G. E. Granroth，G. Ghiringhelli，L. Braicovich
  • Organizer: 日本物理学会第69回年次大会
  • Place of Presentation: 東海大学
• [Presentation] 層状希土類鉄酸化物YbFe2O4の電気分極 (2014)
  • Author(s): 永田知子，福永守，横田紘子，近藤豪，木村宏之，野田幸男，長谷川奈保，武貞正樹，小野寺彰，狩野旬，神戸高志， Benoit Roman，Pierre-Eymeric Janolin，Jean-Michel Kiat，池田直
  • Organizer: 日本物理学会第69回年次大会
  • Place of Presentation: 東海大学
• [Presentation] Magnetism and ferroelectricity in multiferroic Tm1-xYbxMn2O5 single crystals (2013)
  • Author(s): H. Kimura, K. Yamazaki, T. Nakano, M. Fukunaga, Y. Noda, T. Ishigaki, and I.-H. Oh
  • Organizer: International Conference on Neutron Scattering
  • Place of Presentation: Edinburgh, United Kingdom
• [Presentation] Ferroelectric displacement of multiferroic YMn2O5 studied by synchrotron X- ray diffraction (2013)
  • Author(s): H. Kimura, T. Nakano, T. Sakakura, Y. Noda, A. Nakao, Y. Takenaka, S. Kishimoto, H. Nakao, and Y. Murakami
  • Organizer: 13th International Meeting on Ferroelectricity
  • Place of Presentation: Krakow, Poland
• [Presentation] Synchrotron X-ray diffraction study for direct observation of orbital order in YTiO3 and YVO3 (2013)
  • Author(s): T. Sakakura, Y. Ishikawa, T. Nakano, H. Kimua, Y. Noda, Y. Tokura, and S. Miyasaka
  • Organizer: Light and Particle Beams in Materials Science
  • Place of Presentation: Tsukuba
• [Presentation] 中性子・X線・放射光の相補利用によるマルチフェロイック物質の構造物性研究 (2013)
  • Author(s): 木村宏之
  • Organizer: 第9回 CROSSroads workshop「超伝導，磁性とフラストレーション」
  • Place of Presentation: 茨城県東海村
  • Invited
• [Presentation] マルチフェロイック物質153EuMn205の強誘電相と非強誘電相の磁気構造 (2012)
  • Author(s): 木村宏之
  • Organizer: 日本中性子科学会年会
  • Place of Presentation: 京都
  • Year and Date: 2012-12-10
• [Presentation] Relation between ferroelectricity and magnetic structure in multiferroic EuMn205 (2012)
  • Author(s): H、Kimura
  • Organizer: AsCA12/CRYSTAL28
  • Place of Presentation: Adelaide, Austraria
  • Year and Date: 2012-12-04
• [Presentation] 混晶系マルチフェロイクス(1-x)BiFe03-xPbTi03 の結晶構造と相図 (2012)
  • Author(s): 萩谷聡
  • Organizer: 日本結晶学会
  • Place of Presentation: 仙台
  • Year and Date: 2012-10-25
• [Presentation] マルチフェロイック YMn205 のスピン波観測 (2012)
  • Author(s): 木村宏之
  • Organizer: JAEA-CROSS プロジェクト研究 研究会
  • Place of Presentation: 横浜
  • Year and Date: 2012-09-21
• [Presentation] 放射光単結晶X線回折法によるYTi03の軌道秩序の研究 (2012)
  • Author(s): 坂倉輝俊
  • Organizer: 日本物理学会
  • Place of Presentation: 横浜
  • Year and Date: 2012-09-20
• [Presentation] 混晶系マルチフェロイクス(1-x)BiFe03-xPbTi03 の誘電性と結晶構造 (2012)
  • Author(s): 萩谷聡
  • Organizer: 日本物理学会
  • Place of Presentation: 横浜
  • Year and Date: 2012-09-20
• [Presentation] Pressure-induced magnetic and ferroelectric phase transitions in Multiferroic EuMn205 (2012)
  • Author(s): H、Kimura
  • Organizer: The 9th Korea-Japan Conference on Ferroelectrics
  • Place of Presentation: Ulsan, Korea
  • Year and Date: 2012-08-08
• [Presentation] Orbital Order in YTi03 Observed by Super Accurate Synchrotron X-ray Diffraction (2012)
  • Author(s): T. Sakakura
  • Organizer: The 9th Korea-Japan Conference on Ferroelectrics
  • Place of Presentation: Ulsan, Korea
  • Year and Date: 2012-08-08