Origin of large magneto-electric effect in multiferroic compound RMn2O5

2011 Fiscal Year Final Research Report

• Project/Area Number: 21244051
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: Tohoku University
• Principal Investigator: NODA Yukio 東北大学, 多元物質科学研究所, 教授 (80127274)
• Co-Investigator(Kenkyū-buntansha): KIMURA Hiroyuki 東北大学, 多元物質科学研究所, 准教授 (50312658)
• Project Period (FY): 2009 – 2011
• Keywords: 強相関系

Research Abstract

The purpose of the present study is to reveal the origin of the large magneto-electric effect in multiferroic compounds RMn2O5 using magnetic and crystal structure analysis. In order to perform this investigation, we developed the technique of high-pressure neutron magnetic structure analysis and the super accurate crystal structure analysis using synchrotron x-ray. Furthermore, we developed a large two-dimensional neutron detector (2DPSD)to perform rapid and effective neutron experiments. As a result, we have discovered new type magnetic structure accompanied by the ferroelectric phase. In addition, we determined the space group of the ferroelectric phase of YMn2O5.

Research Products

• [Journal Article] easurement of complicated temperature-dependent polarization of multiferroic RMn2O5 (2011)
  • Author(s): M. Fukunaga and Y. Noda
  • Journal Title: J. Phys.: Conf. Ser Volume: 320 Pages: 012090(1-6)
  • Peer Reviewed
• [Journal Article] Magnetic Phase Transitions and Magnetic-Field-Induced Polarization Flops in Multiferroic YbMn2O5 (2011)
  • Author(s): M. FUKUNAGA, Y. SAKAMOTO, H. KIMURA, and Y. NODA
  • Journal Title: J. Phys. Soc. Jpn Volume: 80(No.1) Pages: 014705(1-5)
  • Peer Reviewed
• [Journal Article] Classification and Interpretation of the Polarization of Multiferroic RMn2O5 (2010)
  • Author(s): M. Fukunaga and Y. Noda
  • Journal Title: J. Phys. Soc. Jpn Volume: 79(No.5) Pages: 054705(1-5)
  • Peer Reviewed
• [Journal Article] マルチフェロイックRMnO3およびRMn2O5の磁気構造の解析 (2010)
  • Author(s): 有馬孝尚、木村宏之
  • Journal Title: ISOTOPES誌 Volume: 59(No.8) Pages: 519-527
• [Journal Article] 中性子とX線回折を使用した構造物性研究 (2010)
  • Author(s): 野田幸男
  • Journal Title: 日本中性子科学会波紋 Volume: 20(No.3) Pages: 212-222
• [Journal Article] Magnetic-Field-Induced Polarization Flop in Multiferroic TmMn2O5 (2009)
  • Author(s): M. Fukunaga, Y. Sakamoto, H. Kimura, Y. Noda, N. Abe, K. Taniguchi, T. Arima, S. Wakimoto, M. Takeda, K. Kakurai, and K. Kohn
  • Journal Title: Phys. Rev. Lett Volume: 103 Pages: 077204(1-4)
  • Peer Reviewed
• [Journal Article] マルチフェロイック物質RMn2O5 (R=希土類, Bi, Y)の磁気誘起強誘電性とその磁場応答 (2009)
  • Author(s): 木村宏之、福永守、野田幸男、近桂一郎
  • Journal Title: 固体物理 Volume: 44 NO. 10 Pages: 667-675
• [Presentation] 中性子大型湾曲二次元カウンターの構造解析への応用II (2012)
  • Author(s): 野田幸男, 石川喜久, 李彰煕, 金信愛, 文明國
  • Organizer: 日本物理学会
  • Place of Presentation: 関西学院大学
  • Year and Date: 2012-03-25
• [Presentation] マルチフェロイック物質YMn2O5の磁気誘起強誘電相における原子変位 (2012)
  • Author(s): 木村宏之, 中野隆裕, 堀尾哲, 坂倉輝俊, 野田幸男, 中尾朗子, 竹中康之, 岸本俊二, 中尾裕則, 村上洋一
  • Organizer: 日本物理学会
  • Place of Presentation: 関西学院大学
  • Year and Date: 2012-03-24
• [Presentation] High performance neutron detectors for neutron science (2011)
  • Author(s): M-K Moon, C-H Lee and Y. Noda
  • Organizer: [keynote lecture], The 1st Asia-Oceania Conference on Neutron Scattering (1st AOCNS)
  • Place of Presentation: Tsukuba, Japan
  • Year and Date: 2011-11-23
• [Presentation] Recent activity of the Large 2D-PSD for neutron single crystal structure analysis (2011)
  • Author(s): Y. Noda, Y. Ishikawa, C-H Lee, S-A Kim, and M-K Moon
  • Organizer: The 1st Asia-Oceania Conference on Neutron Scattering (1st AOCNS)
  • Place of Presentation: Tsukuba, Japan
  • Year and Date: 2011-11-23
• [Presentation] Spontaneous reversal of ferroelectric polarization induced by a memory effect of spin chirality (2011)
  • Author(s): H. Kimura, S. Wakimoto, Y. Sakamoto, M. Fukunaga, Y. Noda, and K. Kakurai
  • Organizer: The 1st Asia-Oceania Conference on Neutron Scattering (1st AOCNS)
  • Place of Presentation: Tsukuba, Japan
  • Year and Date: 2011-11-22
• [Presentation] マルチフェロイック物質YMn2O5の高圧下における結晶・磁気構造解析 (2011)
  • Author(s): 藤山聖, 木村宏之, 野田幸男, 平賀晴弘, 野島勉
  • Organizer: 日本物理学会
  • Place of Presentation: 富山大学
  • Year and Date: 2011-09-22
• [Presentation] Large 2D-PSD for neutron single crystal structure analysis (2011)
  • Author(s): Y. Noda, Y. Ishikawa, C-H Lee, S-A Kim, M-K Moon
  • Organizer: XXII Congress and General Assembly, International Union of Crystallography
  • Place of Presentation: Madrid, Spain
  • Year and Date: 2011-08-27
• [Presentation] Neutron diffraction study of substitution effect of non-magnetic Ga for Mn on Multiferroic property in YMn2O5 (2011)
  • Author(s): H. Kimura, S. Wakimoto, Y. Sakamoto, M. Fukunaga, Y. Noda, M. Takeda, K. Kakurai, H. Hiraka
  • Organizer: 5th EUROPEAN CONFERENCE ON NEUTRON SCATTERING (ECNS2011)
  • Place of Presentation: Prague, Czech Republic
  • Year and Date: 2011-07-21
• [Presentation] Magnetic chirality and electric polarization in multiferroic YMn2O5 (2011)
  • Author(s): S. Wakimoto, H. Kimura, M. Fukunaga, Y. Sakamoto, K. Kakurai, Y. Noda
  • Organizer: The workshop on"Spin Chirality and Dzyaloshinskii-Moriya Interaction"
  • Place of Presentation: St.-Petersburg Russia
  • Year and Date: 2011-05-26
• [Presentation] Measurement of complicated temperature-dependent polarization of multiferroic RMn2O5 (2011)
  • Author(s): M. Fukunaga and Y. Noda
  • Organizer: International Conference on Frustration in Condensed Matter(ICFCM)
  • Place of Presentation: Sendai Japan
  • Year and Date: 2011-01-11
• [Presentation] The Validity of Neutron Magnetic and Crystal Structure Analysis Using Single Crystals on Material Science (2010)
  • Author(s): Y. Noda
  • Organizer: Advanced structure analysis and characterization of ceramic materials (ICC3)
  • Place of Presentation: Osaka Japan
  • Year and Date: 2010-11-16
• [Presentation] Which Is Major Player, S . S or S x S, in the Ferroelectricity of RMn2O5? (2010)
  • Author(s): Y. Noda
  • Organizer: The 8th Japan-Korea Conference on Ferroelectrics (JKC-FE08)
  • Place of Presentation: Egret Himeji, Himeji, Japan
  • Year and Date: 2010-08-04
• [Presentation] Coexisting of Two Different Mechanisms of Ferroelectricity in Multiferroic RMn2O5 (2010)
  • Author(s): Y. Noda
  • Organizer: The 10th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity (RCBJSF-10)
  • Place of Presentation: Suzukake-Hall, Suzukakedai-campus, Tokyo Institute of Technology, Yokohama Japan
  • Year and Date: 2010-06-23
• [Presentation] 中性子とX線4軸回折装置を使用した構造物性研究 (2009)
  • Author(s): 野田幸男
  • Organizer: 日本中性子科学会
  • Place of Presentation: いばらき量子ビーム研究センター
  • Year and Date: 2009-12-09
• [Presentation] 中性子単結晶構造解析のための新しい大型湾曲二次元カウンター (2009)
  • Author(s): 野田幸男、石川喜久、李彰煕、金信愛、文明國
  • Organizer: 日本結晶学会
  • Place of Presentation: 関西学院大学
  • Year and Date: 2009-12-06
• [Presentation] Electric Polarization Flop and Magnetic Phase Transition induced by Magnetic Field in Multiferroic RMn2O5 (R=Tm, Yb) (2009)
  • Author(s): H. Kimura, Y. Sakamoto, M. Fukunaga, Y. Noda, N. Abe, K. Taniguchi, T. Arima, S. Wakimoto and K. Kakurai
  • Organizer: AsCA09
  • Place of Presentation: Beijing China
  • Year and Date: 2009-10-25
• [Presentation] Magnetic and Dielectric Property in Multiferroic YMn^<4+>(Mn_<1-x> Ga_x)^<3+> O_5 (2009)
  • Author(s): Y. Sakamoto, H. Kimura, S. Horio, A. Fey, M. Fukunaga, R. Kiyanagi, Y. Noda, and H. Haruhiro
  • Organizer: AsCA09
  • Place of Presentation: Beijing China
  • Year and Date: 2009-10-25
• [Presentation] Development and Application of Neutron 2D-Counter for Crystal and Magnetic Structure Analysis (2009)
  • Author(s): Y. Noda, C-H. Lee, M-K. Moon, S-A. Kim, Y. Ishikawa, H. Kimura and R. Kiyanagi
  • Organizer: AsCA09
  • Place of Presentation: Beijing China
  • Year and Date: 2009-10-23
• [Presentation] マルチフェロイック物質YMn^<4+>(Mn_<1-x> Ga_x)^<3+> O_5における磁性と誘電性のGa置換効果 (2009)
  • Author(s): 坂本勇馬, 木村宏之, 堀尾哲, arno Fey, 福永守, 野田幸男, 平賀晴弘
  • Organizer: 日本物理学会
  • Place of Presentation: 熊本大学
  • Year and Date: 2009-09-28
• [Presentation] マルチフェロイックRMn2O5系の分極データの分類と解釈 (2009)
  • Author(s): 福永守, 野田幸男
  • Organizer: 日本物理学会
  • Place of Presentation: 熊本大学
  • Year and Date: 2009-09-28