Control of the Magneto-optical effect by spin-chirality in multiferroic magnet

• Project/Area Number: 21740237
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Condensed matter physics II
• Research Institution: The University of Tokyo (2010); Tohoku University (2009)
• Principal Investigator: TANIGUCHI Kouji The University of Tokyo, 大学院・新領域創成科学研究科, 講師 (30400427)
• Project Period (FY): 2009 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000); Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2009: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: マルチフェロイクス / 光学的電気磁気効果 / イメージング / 磁気光学

Research Abstract

Recently, the magneto-optical effect, such as magneto-chiral effect in the spin systems without space-inversion symmetry, has been attracting much attention. In this study, we have tried to observe the magnetoelectric domain, in which the space-inversion symmetry is broken by the spin arrangement. We have succeeded to visualize the magnetoelectric domain in (Cu,Ni) B2O4, which is the weak ferromagnet without space-inversion symmetry. We have also visualized the two-phase coexisting state, in which the domain with spin chirality and that with the collinear spin arrangement exist, through the difference of the optical absorption of each domain.

Research Products

• [Journal Article] Correlation between the mobility of domain wall and polarization flop direction in a slanted magnetic field in the helimagnetic ferroelectrics Tb_<1-x>Dy_xMnO_3 (2011)
  • Author(s): N.Abe
  • Journal Title: Physical Review B Volume: 83
  • Peer Reviewed
• [Journal Article] Temperature-dependent Raman scattering study of multiferroic MnWO_4 (2010)
  • Author(s): L.H.Hoang, N.T.M.Hien, W.S.Choi, Y.S.Lee, K.Taniguchi, T.Arima, S.Yoon, X.B.Chen, I.S.Yang
  • Journal Title: Journal of Raman Spectroscopy 41 Pages: 1005-1010
  • Peer Reviewed
• [Journal Article] Electronic structure and anomalous band-edge absorption feature in multiferroic MnWO_4 : An optical spectroscopic study (2010)
  • Author(s): W.S.Choi, K.Taniguchi, S.J.Moon, S.S.A.Seo, T.Arima, H.Hoang, I.-S.Yang, T.W.Noh, Y S.Lee
  • Journal Title: Physical Review B 81
  • Peer Reviewed
• [Journal Article] Observation of Spin Helicity Using Nonresonant Circularly Polarized X-ray Diffraction Analysis (2010)
  • Author(s): H.Sagayama, N.Abe, K.Taniguchi, T.Arima, Y.Yamasaki, D.Okuyama, Y.Tokura, S.Sakai, T.Morita, T.Komesu, H.Ohsumi, M.Takata
  • Journal Title: Journal of Physical Society of Japan 79
  • NAID: 40017072097
  • Peer Reviewed
• [Journal Article] Optical imaging of coexisting collinear and spiral spin phases in the magnetoelectric multiferroic MnWO_4 (2010)
  • Author(s): K.Taniguchi, M.Saito, T.Arima
  • Journal Title: Physical Review B 81
  • Peer Reviewed
• [Journal Article] Optical imaging of coexisting collinear and spiral spin phases in the magnetoelectric multiferroic MnWO_4 (2010)
  • Author(s): K.Taniguchi
  • Journal Title: Physical Review B Volume: 81
  • Peer Reviewed
• [Journal Article] Observation of Spin Helicity Using Nonresonant Circularly Polarized X-ray Diffraction Analysis (2010)
  • Author(s): H.Sagayama
  • Journal Title: Journal of Physical Society of Japan Volume: 79
  • Peer Reviewed
• [Journal Article] Electronic structure and anomalous band-edge absorption feature in multiferroic MnWO_4 : An optical spectroscopic study (2010)
  • Author(s): W.S.Choi
  • Journal Title: Physical Review B Volume: 81
  • Peer Reviewed
• [Journal Article] Temperature-dependent Raman scattering study of multiferroic MnWO_4 (2010)
  • Author(s): L.H.Hoang
  • Journal Title: Journal of Raman Spectroscopy Volume: 41 Pages: 1005-1010
  • Peer Reviewed
• [Journal Article] Periodic rotation of magnetization in a non-centrosymmetric soft magnet induced by an electric field (2009)
  • Author(s): M.Saito, K.Ishikawa, S.Konno, K.Taniguchi, T.Arima
  • Journal Title: Nature Materials 8 Pages: 634-638
  • Peer Reviewed
• [Journal Article] Magnetoelectric Memory Effect of the Nonpolar Phase with Collinear Spin Structure in Multiferroic MnWO_4 (2009)
  • Author(s): K.Taniguchi
  • Journal Title: Physical Review Letters 102
  • Peer Reviewed
• [Journal Article] Control of the polarization flop direction by a tilted magnetic field in multiferroic TbMnO_3 (2009)
  • Author(s): N.Abe
  • Journal Title: Physical Review B 80
  • Peer Reviewed
• [Journal Article] Periodic rotation of magnetization in a non-centrosymmetric soft magnet induced by an electric field (2009)
  • Author(s): M.Saito
  • Journal Title: Nature Materials 8 Pages: 634-638
  • Peer Reviewed
• [Journal Article] Magnetic-Field-Induced Polarization Flop in Multiferroic TmMn_2O_5 (2009)
  • Author(s): M.Fukunaga
  • Journal Title: Physical Review Letters 103
  • Peer Reviewed
• [Presentation] Correlation between magnetocapacitance effect and polarization flop direction in a slanted magnetic field in Tb_<1-x>Dy_xMnO_3 (2011)
  • Author(s): N.Abe
  • Organizer: March 2011 Meeting of the American Physical Society
  • Place of Presentation: Dallas (United States of America)
  • Year and Date: 2011-03-22
• [Presentation] Magnetic-field-induced phase transition in Mn_3O_4 (2011)
  • Author(s): Y.Nii
  • Organizer: International Conference on Frustration in Condensed Matter
  • Place of Presentation: Sendai (Japan) Sendai International Center
  • Year and Date: 2011-01-11
• [Presentation] Correlation betweenmagnetocapacitance effect and polarization flop direction in a slanted magnetic field in Tb_<1-x>Dy_xMnO_3 (2011)
  • Author(s): N.Abe
  • Organizer: International Conference on Frustration in Condensed Matter
  • Place of Presentation: Sendai (Japan) Sendai International Center
  • Year and Date: 2011-01-11
• [Presentation] Mn_3O_4における磁場誘起磁気構造相転移 (2010)
  • Author(s): 新居陽一
  • Organizer: 日本中性子科学会第10回年会
  • Place of Presentation: 仙台市 東北大学片平キャンパス(さくらホール)
  • Year and Date: 2010-12-10
• [Presentation] Y型六方晶フェライトBa_2Mg_2Fe_<12>O_<22>の強誘電相における磁気構造 (2010)
  • Author(s): 矢野真一郎
  • Organizer: 日本中性子科学会第10回年会
  • Place of Presentation: 仙台市 東北大学片平キャンパス(さくらホール)
  • Year and Date: 2010-12-10
• [Presentation] Mn_3O_4における磁場誘起磁気構造相転移 (2010)
  • Author(s): 佐賀山基
  • Organizer: 日本物理学会秋季大会
  • Place of Presentation: 堺市 大阪府立大学中百舌鳥キャンパス
  • Year and Date: 2010-09-23
• [Presentation] マルチフェロイック物質MnWO_4の光学特性 (2009)
  • Author(s): 谷口耕治, 齋藤充, 有馬孝尚
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: 熊本
  • Year and Date: 2009-09-27
• [Presentation] 非共鳴円偏光X線回折によるマルチフェロイック物質のスピンカイラリティの観測 (2009)
  • Author(s): 佐賀山基, 谷口耕治, 阿部伸行, 有馬孝尚, 山崎裕一, 奥山大輔, 十倉好紀, 酒井創一朗, 森田健史, 徳田哲久, 米須尚, 大隈寛幸, 高田昌樹
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: 熊本
  • Year and Date: 2009-09-27
• [Presentation] Tb_<1-x>Dy_xMnO_3における電気分極の磁場による選択的回転 (2009)
  • Author(s): 阿部伸行
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: 熊本市
  • Year and Date: 2009-09-27
• [Presentation] マルチフェロイック物質MnWO_4の光学特性 (2009)
  • Author(s): 谷口耕治
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: 熊本市
  • Year and Date: 2009-09-27
• [Presentation] 非共鳴円偏光X線回折によるマルチフェロイック物質のスピンカイラリティの観測 (2009)
  • Author(s): 佐賀山基
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: 熊本市
  • Year and Date: 2009-09-27
• [Presentation] Y型六方晶フェライトBa_2Mg_2Fe_<12>O_<22>の強誘電相における磁気構造 (2009)
  • Author(s): 西川勇作
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: 熊本市
  • Year and Date: 2009-09-25
• [Presentation] Observation of Spin Chirality using Circularly-Polarized Synchrotron Radiation X-rays (2009)
  • Author(s): H.Sagayama, N.Abe, K.Taniguchi, T.Arima, Y.Yamasaki, D.Okuyama, Y.Tokura, S.Sakai, T.Morita, T.Komesu, H.Ohsumi, M.Takata
  • Organizer: Gordon Research conference X-Ray Science
  • Place of Presentation: ウォータービル(アメリカ合衆国)
  • Year and Date: 2009-08-02
• [Presentation] Observation of Spin Chirality using Circularly-Polarized Synchrotron Radiation X-rays (2009)
  • Author(s): 佐賀山基
  • Organizer: Gordon Research conference' X-Ray Science
  • Place of Presentation: Waterville(United States of America)
  • Year and Date: 2009-08-02
• [Presentation] Control of the electric polarization flop direction by a canted magnetic field in a magnetoelectric multiferroic material MnWO_4 (2009)
  • Author(s): K.Taniguchi, N.Abe, H.Umetsu, T.Arima
  • Organizer: International Conference on Magnetism
  • Place of Presentation: カールスルーエ(ドイツ)
  • Year and Date: 2009-07-28
• [Presentation] Control of the electric polarization flop direction by a conted magnetic field in a magnetoelectric multiferroic material MnWO_4 (2009)
  • Author(s): 谷口耕治
  • Organizer: International Conference on Magnetism
  • Place of Presentation: Karlsruhe(Germany)
  • Year and Date: 2009-07-28
• [Presentation] Control of the polarization flop direction in multiferroic RMnO_3 by a tilted magnetic field (2009)
  • Author(s): 阿部伸行
  • Organizer: International Conference on Magnetism
  • Place of Presentation: Karlsruhe(Germany)
  • Year and Date: 2009-07-28
• [Presentation] 磁性強誘電体MnWO_4のスピンカイラリティ制御 (2009)
  • Author(s): 有馬孝尚, 阿部伸行, 谷口耕治
  • Organizer: 第4回トピカルミーティング「フラストレーションとカイラリティ」
  • Place of Presentation: カールスルーエ(ドイツ)
  • Year and Date: 2009-07-04
• [Presentation] 磁性強誘電体MnWO_4のスピンカイラリティ制御 (2009)
  • Author(s): 有馬孝尚
  • Organizer: 特定領域「フラストレーションが創る新しい物性」第4回トピカルミーティング
  • Place of Presentation: 神戸市
  • Year and Date: 2009-07-04
• [Presentation] 非共鳴円偏光X線回折によるスピンカイラリティの観測 (2009)
  • Author(s): 佐賀山基, 谷口耕治, 阿部伸行, 有馬孝尚, 山崎裕一, 奥山大輔, 十倉好紀, 酒井創一朗, 森田健士, 米須尚, 大隈寛幸, 高田昌樹
  • Organizer: 第4回トピカルミーティング「フラストレーションとカイラリティ」
  • Place of Presentation: 神戸
  • Year and Date: 2009-07-03
• [Presentation] 斜方晶RMnO_3における電気分極の磁場による選択的回転 (2009)
  • Author(s): 阿部伸行
  • Organizer: 特定領域「フラストレーションが創る新しい物性」第4回トピカルミーティング
  • Place of Presentation: 神戸市
  • Year and Date: 2009-07-03
• [Presentation] 非共鳴円偏光X線回折によるスピンカイラリティの観測 (2009)
  • Author(s): 佐賀山基
  • Organizer: 特定領域「フラストレーションが創る新しい物性」第4回トピカルミーティング
  • Place of Presentation: 神戸市
  • Year and Date: 2009-07-03