Control of electronic phases in multiferroic oxides by external fields

• Project/Area Number: 19540376
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: Sophia University
• Principal Investigator: KUWAHARA Hideki Sophia University, 理工学部, 教授 (90306986)
• Co-Investigator(Kenkyū-buntansha): AKAHOSHI Daisuke 上智大学, 理工学部, 講師 (90407354)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2008: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2007: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: 反強磁性体 / 遷移金属酸化物 / 強誘電体 / 自発電気分極 / 電気磁気効果 / 相転移 / 低次元物質 / 異方性 / 誘電率 / 磁場 / スピン / 4f電子

Research Abstract

RMnO_3(R:希土類イオン)はRのイオン半径の減少に伴い、基底状態の磁気構造はA型反強磁性(R = La-Eu)からスパイラル反強磁性(R = Gd-Dy)へと転移する。スパイラル反強磁性相においては自発電気分極が生じ、巨大電気磁気応答が観測されている。この電気磁気効果を利用することで新しい電子材料の開発が期待されている。しかし、RMnO_3においては磁場による自発電気分極制御は報告されているが、電場による自発磁化制御はまだ実現していない。本研究では、電場による磁化制御の実現を目指し、弱強磁性成分を持つA型反強磁性常誘電相とスパイラル反強磁性強誘電相の相境界に位置するEu_0.8Y_0.2MnO_3に注目し研究を行った。

Research Products

• [Journal Article] Persistent and Reversible Phase Control in GdMnO_3 near the Phase Boundary (2009)
  • Author(s): H. Kuwahara (1番目), D. Akahoshi (6番目) 他4名
  • Journal Title: Journal of JournaPhysics: Conference Series 150 042106 Pages: 1-4
  • Peer Reviewed
• [Journal Article] Magnetic and dielectric properties of A_2CoSi_2O_7 (A=Ca, Sr, Ba) crystals (2009)
  • Author(s): M. Akaki, J. Tozawa, D. Akahoshi, an H. Kuwahara
  • Journal Title: Journal of Physics: Conference Series 150 042001 Pages: 1-4
  • Peer Reviewed
• [Journal Article] Cr-doping effect on the orbital fluctuation of heavily doped Nd_1-xSr_xMnO_3 (x~0.625) (2009)
  • Author(s): R.Tasaki, S. Fukushima, M. Akaki, D. Akahoshi, and H. Kuwahara
  • Journal Title: Journal of Applied Physics 105 07D725 Pages: 1-2
  • Peer Reviewed
• [Journal Article] Magnetic and dielectric properties of A_2CoSi_2O_7, crystals (A=Ca, Sr, Ba) (2009)
  • Author(s): M. Akaki, et al.
  • Journal Title: Journal of Physics : Conference Series 150 Pages: 42001-42001
  • Peer Reviewed
• [Journal Article] Persistent and Reversible Phase Control in GdMnO_3 near the Phase Boundary (2009)
  • Author(s): H. Kuwahara, et al.
  • Journal Title: Journal of Physics : Conference Series 150 Pages: 42106-42106
  • Peer Reviewed
• [Journal Article] Cr-doping effect on the orbital fluctuation of heavily doped Nd_<1-x>Sr_xMnO_3(x〜0.625) (2009)
  • Author(s): R. Tasak, et al.
  • Journal Title: Journal of Applied Physics 105
  • Peer Reviewed
• [Journal Article] Order-disorder effect of A site and oxygen vacancy on magnetic and transport properties of Y_<1/4>Sr<3/4>Co0_<3-δ> (2009)
  • Author(s): S. Fukushima, et al.
  • Journal Title: Journal of the Physics Society of Japan (印刷中)
  • Peer Reviewed
• [Journal Article] Chemical potential landscape in bandfilling and bandwidth-control of manganites: Photoemission spectroscopy measurements (2008)
  • Author(s): K. Ebata (1番目), H. Kuwahara (4番目), 他4名
  • Journal Title: Physical Review B 78 020406R Pages: 1-4
  • Peer Reviewed
• [Journal Article] Chemical potential shift induced by double-exchange and polaronic effects in Nd_1-xSr_xMnO_3 (2008)
  • Author(s): K. Ebata (1番目), H. Kuwahara (5番目), 他5名
  • Journal Title: Physical Review B 77 094422 Pages: 1-5
  • Peer Reviewed
• [Journal Article] Magnetodielectric effects in low-dimensional cobalt oxides (2008)
  • Author(s): M. Akaki, F. Nakamura, D. Akahoshi, and H. Kuwahara
  • Journal Title: Physica B:Condensed Matter 403 Pages: 1505-1507
  • Peer Reviewed
• [Journal Article] Large Magnetoresistance of Heavily Doped Nd_1-xSr_xMnO_3 (0.55〓x〓0.75) (2008)
  • Author(s): D. Akahoshi, R. Hatakeyama, and H. Kuwahara
  • Journal Title: Physica B: Condensed Matter 403 Pages: 1598-1600
  • Peer Reviewed
• [Journal Article] Anomalous ferromagnetic behavior and large magnetoresistance induced by orbital fluctuation in heavily doped Nd_1-xSr_xMnO_3 (0.57〓x〓0.75) (2008)
  • Author(s): D. Akahoshi (1番目), H. Kuwahara (6番目), 他4名
  • Journal Title: Physical Review B 77 054404 Pages: 1-5
  • Peer Reviewed
• [Journal Article] Comparative study of ordered and disordered Y_1-xSr_xCoO_3-δ (2008)
  • Author(s): S. Fukushima, T. Sato, D. Akahoshi, and H. Kuwahara
  • Journal Title: Journal of Applied Physics 103 07F705 Pages: 1-3
  • Peer Reviewed
• [Journal Article] Chemical potential landscape in band filling and bandwidth-control of manganites : Photoemission spectroscopy measurements (2008)
  • Author(s): K. Ebata, et al.
  • Journal Title: Physical Review B78
  • Peer Reviewed
• [Journal Article] Chemical potential shift induced by double-exchange and polaronic effects in Nd_<1-x>Sr_xMnO_3 (2008)
  • Author(s): K. Ebata, et al.
  • Journal Title: Physical Review B77 Pages: 94422-94422
  • Peer Reviewed
• [Journal Article] Magnetodielectric Effects in Low-Dimensional Cobalt Oxides (2008)
  • Author(s): M. Akaki, et. al.
  • Journal Title: Physica B 403 Pages: 1505-1507
  • Peer Reviewed
• [Journal Article] Comparative study of ordered-and disordered-Y_<1-x>Sr_xCoO_<3-d> (2008)
  • Author(s): S. Fukushima, et. al.
  • Journal Title: J.Appl.Phys 103
  • Peer Reviewed
• [Journal Article] Large Magnetoresistance of Heavily Doped Nd_<1-x>Sr_xMnO_3(055≦x≦0.75) (2008)
  • Author(s): D. Akahoshi, et. al.
  • Journal Title: Physica B 403 Pages: 1598-1600
  • Peer Reviewed
• [Journal Article] Nano-structural evidence at the phase boundarof A- and C-type antiferromagnetic phases in Nd_1-xSr_xMnO_3 crystals (2007)
  • Author(s): M. Nagao (1番目), D. Akahos H. Kuwahara(12番目), 他10名
  • Journal Title: Journal of Physics: Condensed Matter 19 492201 Pages: 1-7
  • Peer Reviewed
• [Journal Article] Anomalous Reflectivity Oscillation of Layered Manganite La_0.5Sr_1.5MnO_4 (2007)
  • Author(s): K. Kouyama, Y. Kubo, K. Ema, andH. Kuwahara
  • Journal Title: Journal of the Physical Society of Japan 76 123702 Pages: 1-3
  • NAID: 110006532183
  • Peer Reviewed
• [Journal Article] "Diffuse phase transition and anisotropic evolution of nanodomains in Nd_0.2Sr_0.8MnO_3 (2007)
  • Author(s): M. Nagao (1番目), D. Akahoshi (4番目), H. Kuwahara (12番目), 他10名
  • Journal Title: Journal of the Physical Society of Japan 76 103706 Pages: 1-4
  • NAID: 110006448296
  • Peer Reviewed
• [Journal Article] Ferroelectric polarization and magnetic structure in Eu_0.595Y_0.405MnO_3 (2007)
  • Author(s): R. Kajimoto, T. Yokoo, M. Kofu, K. Noda, and H. Kuwahara
  • Journal Title: Journal of Physics and Chemistry of Solids 68 Pages: 2087-2090
  • Peer Reviewed
• [Journal Article] Photoemission Study of Perovskite-Type Manganites with Stripe Ordering (2007)
  • Author(s): K. Ebata (1番目), H. Kuwaha 他9名
  • Journal Title: Journal of Superconductivity and Novel Magnetism 20 Pages: 543-546
  • Peer Reviewed
• [Journal Article] Control of Ferroelectric Phases by 4f Magnetic Moments in Multiferroic RMnO_3 Crystals (2007)
  • Author(s): H. Kuwahara, et. al.
  • Journal Title: Mat.Res.Soc.Symp.Proc 966
  • Peer Reviewed
• [Journal Article] Ferroelectric polarization and magnetic structure in Eu_<0.595>Y_<0.405>MnO_3 (2007)
  • Author(s): R. Kajimoto, et. al.
  • Journal Title: J.Phys.Chem.Solids 68 Pages: 2087-2090
  • Peer Reviewed
• [Journal Article] Anomalous Reflectivity Oscillation of Layered Manganite La_<0.5>Sr_<1.5>MnO_4 (2007)
  • Author(s): K. Kouyama, et. al.
  • Journal Title: J.Phys.Soc.Jpn 76 Pages: 123702-123702
  • Peer Reviewed
• [Journal Article] Order-disorder effect of A site and oxygen vacancy on magnetic and transpoproperties of Y_1/4Sr_3/4CoO_3-δ
  • Author(s): S. Fukushima, T. Sato, D. Akahoshi, and H. Kuwahara
  • Journal Title: Journal of the Physical Society of Japan in press
  • Peer Reviewed
• [Presentation] 層状Mn酸化物の角度分解光電子スペクトルの温度変化 (2009)
  • Author(s): 吉沢紀季
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 立教学院池袋キャンパス
  • Year and Date: 2009-03-28
• [Presentation] 強磁場下におけるMn酸化物の電荷軌道秩序融解高速イメージング (2009)
  • Author(s): 片倉稲子
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 立教学院池袋キャンパス
  • Year and Date: 2009-03-28
• [Presentation] 軟X線共鳴散乱を用いた 強相関電子系遷移金属酸化物の電荷・軌道秩序研究 (2009)
  • Author(s): 久保田正人
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 立教学院池袋キャンパス
  • Year and Date: 2009-03-28
• [Presentation] 秩序型および無秩序型Y_1-xSr_xCoO_3-δの酸素欠損構造と磁性 (2009)
  • Author(s): 福島瞬
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 立教学院池袋キャンパス
  • Year and Date: 2009-03-28
• [Presentation] 秩序型および無秩序型Y_<1-x>Sr_xCoO_<3-δ>の酸素欠損構造と磁性 (2009)
  • Author(s): 福島瞬, 他
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 立教大学
  • Year and Date: 2009-03-28
• [Presentation] 軟X線共鳴散乱を用いた強相関電子系遷移金属酸化物の電荷・軌道秩序研究 (2009)
  • Author(s): 久保田正人, 他
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 立教大学
  • Year and Date: 2009-03-28
• [Presentation] 強磁場下におけるMn酸化物の電荷軌道秩序融解高速イメージング (2009)
  • Author(s): 片倉稲子, 他
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 立教大学
  • Year and Date: 2009-03-28
• [Presentation] 層状Mn酸化物の角度分解光電子スペクトルの温度変化 (2009)
  • Author(s): 吉沢紀季, 他
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 立教大学
  • Year and Date: 2009-03-28
• [Presentation] 低次元磁性体Cu_3Mo_2O_9の磁性の圧力効果 (2009)
  • Author(s): 新藤祐
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 立教学院池袋キャンパス
  • Year and Date: 2009-03-27
• [Presentation] Sr_3-yA_yFe_2-xCo_xO_7-δ(A=Ca,La,Pr)の酸素量制御による物性変化 (2009)
  • Author(s): 戸澤純一郎
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 立教学院池袋キャンパス
  • Year and Date: 2009-03-27
• [Presentation] 斜方晶RMnO3の結晶格子の乱れによる強誘電相制御 (2009)
  • Author(s): 人見真旦
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 立教学院池袋キャンパス
  • Year and Date: 2009-03-27
• [Presentation] 2次元的電気伝導を示すペロブスカイト型Mn酸化物のバルク敏感光電子分光 (2009)
  • Author(s): 杉山浩史
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 立教学院池袋キャンパス
  • Year and Date: 2009-03-27
• [Presentation] 希土類4f磁気モーメントによるRMnO_3の電気分極ドメイン制御 (2009)
  • Author(s): 赤木暢
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 立教学院池袋キャンパス
  • Year and Date: 2009-03-27
• [Presentation] 希土類4f磁気モーメントによるRMnO_3の電気分極ドメイン制御 (2009)
  • Author(s): 赤木暢, 他
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 立教大学
  • Year and Date: 2009-03-27
• [Presentation] 2次元的電気伝導を示すペロブスガイト型Mn酸化物のバルク敏感光電子分光 (2009)
  • Author(s): 杉山浩史, 他
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 立教大学
  • Year and Date: 2009-03-27
• [Presentation] 斜方晶RMnO_3の結晶格子の乱れによる強誘電相制御 (2009)
  • Author(s): 人見真旦, 他
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 立教大学
  • Year and Date: 2009-03-27
• [Presentation] Sr_<3-y>A_yFe_<2-x>Co_xO_<7-δ>(A=Ca, La, Pr)の酸素量制御による物性変化 (2009)
  • Author(s): 戸澤純一郎, 他
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 立教大学
  • Year and Date: 2009-03-27
• [Presentation] 低次元磁性体CU_3Mo_2O_9の磁性の圧力効果 (2009)
  • Author(s): 新藤祐, 他
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 立教大学
  • Year and Date: 2009-03-27
• [Presentation] Mn酸化物の電荷軌道秩序融解高速イメージング (2008)
  • Author(s): 片倉稲子
  • Organizer: 特定領域"100テスラ領域の学"第5回シンポジウム
  • Place of Presentation: 岡山大学
  • Year and Date: 2008-12-12
• [Presentation] Cr-doping Effect on the orbital fluctuation of heavily doped Nd_1-xSr_xMnO_3 (x~0.625) (2008)
  • Author(s): R. Tasaki
  • Organizer: 53rd Annual Conference on Magnetism and Magnetic Materials
  • Place of Presentation: Austin, Texas, USA
  • Year and Date: 2008-11-11
• [Presentation] Nd_1-xSr_xMnO_3結晶の高ドープ域におけるB-site不純物置換効果 (2008)
  • Author(s): 田先雷太
  • Organizer: 日本物理学会2008年秋季大会
  • Place of Presentation: 岩手大学上田キャンパス
  • Year and Date: 2008-09-21
• [Presentation] 低次元磁性体Cu_3Mo_2O_9の反強磁性秩序の磁場依存性 (2008)
  • Author(s): 浜崎智彰
  • Organizer: 日本物理学会2008年秋季大会
  • Place of Presentation: 岩手大学上田キャンパス
  • Year and Date: 2008-09-21
• [Presentation] 低次元磁性体CU_3Mo_2O_9の反強磁性秩序の磁場依存性 (2008)
  • Author(s): 浜崎智彰, 他
  • Organizer: 日本物理学会2008年秋季大会
  • Place of Presentation: 岩手大学
  • Year and Date: 2008-09-21
• [Presentation] Nd_<1-x>Sr_xMnO_3結晶の高ドープ域におけるB-site不純物置換効果 (2008)
  • Author(s): 田先雷太, 他
  • Organizer: 日本物理学会2008年秋季大会
  • Place of Presentation: 岩手大学
  • Year and Date: 2008-09-21
• [Presentation] 多重臨界点近傍の秩序型NdBaMn_2O_6におけるホールドープ効果 (2008)
  • Author(s): 福島瞬
  • Organizer: 日本物理学会2008年秋季大会
  • Place of Presentation: 岩手大学上田キャンパス
  • Year and Date: 2008-09-20
• [Presentation] 多重臨界点近傍の秩序型NdBaMn_2O_6におけるホールドープ効果 (2008)
  • Author(s): 福島瞬, 他
  • Organizer: 日本物理学会2008年秋季大会
  • Place of Presentation: 岩手大学
  • Year and Date: 2008-09-20
• [Presentation] Persistent and ReversiPhase Control in GdMnO_3 near the Phase Boundary (2008)
  • Author(s): H. Kuwahara
  • Organizer: 25th international conference on Low Temperature Physics
  • Place of Presentation: Amsterdam
  • Year and Date: 2008-08-12
• [Presentation] Magnetic and dielectric properties of A_2CoSi_2O_7 crystals (A=Ca, Sr, Ba) (2008)
  • Author(s): M. Akaki
  • Organizer: 25th international conference on Low Temperature Physics
  • Place of Presentation: Amsterdam
  • Year and Date: 2008-08-11
• [Presentation] Orbital ordering and spin-singlet formation in vanadium oxide spinel-related structure (2008)
  • Author(s): T. Katsufuji
  • Organizer: 25th international conference on Low Temperature Physics
  • Place of Presentation: Amsterdam
  • Year and Date: 2008-08-09
• [Presentation] Eu_0.8Y_0.2MnO_3における弱強磁性強誘電状態の電場磁場制御 (2008)
  • Author(s): 赤木暢
  • Organizer: 第2回トピカルミーティング「フラストレーションとマルチフェロイクス」
  • Place of Presentation: 京都大学
  • Year and Date: 2008-06-06
• [Presentation] Nd_0.33Sr_1.66Mn_2O_4の磁気構造 (2008)
  • Author(s): 大原泰明
  • Organizer: 日本物理学会第63回年次大会
  • Place of Presentation: 近畿大学
  • Year and Date: 2008-03-26
• [Presentation] ペロブスカイト型酸化物における反射率の時間変化II (2008)
  • Author(s): 田先雷太
  • Organizer: 日本物理学会第63回年次大会
  • Place of Presentation: 近畿大学
  • Year and Date: 2008-03-24
• [Presentation] ペロブスカイト型酸化物における反射率の時間変化 (2008)
  • Author(s): 田先 雷太, 他
  • Organizer: 日本物理学会2008年春季大会
  • Place of Presentation: 近畿大学
  • Year and Date: 2008-03-24
• [Presentation] 斜方晶Eu_0.8Y_0.2MnO_3における弱強磁性強誘電状態 (2008)
  • Author(s): 赤木暢
  • Organizer: 日本物理学会第63回年次大会
  • Place of Presentation: 近畿大学
  • Year and Date: 2008-03-23
• [Presentation] 斜方晶Eu_<0.8>Y_<0.2>MnO_3結晶における弱強磁性強誘電状態 (2008)
  • Author(s): 赤木 暢, 他
  • Organizer: 日本物理学会2008年春季大会
  • Place of Presentation: 近畿大学
  • Year and Date: 2008-03-23
• [Presentation] 軌道フラストレーションを利用した巨大電子応答 (2008)
  • Author(s): 赤星大介
  • Organizer: 第1回トピカルミーティング「フラストレート新規物質」
  • Place of Presentation: 京都大学
  • Year and Date: 2008-01-12
• [Presentation] Eu_<0.8>Y_<0.2>MnO_3における弱強磁性強誘電状態の電場磁場制御 (2008)
  • Author(s): 赤木暢, 他
  • Organizer: 文部科学省科学研究費補助金特定領域研究「フラストレーションが創る新しい物性」第2回トピカルミーティング「フラストレーションとマルチフェロイクス」
  • Place of Presentation: 京都大学
• [Presentation] Persistent and Reversible Phase Control in GdMnO_3 near the Phase Boundary (2008)
  • Author(s): H. Kuwahara, et al.
  • Organizer: 25th international conference on Low Temperature Physics (LT25)
  • Place of Presentation: Amsterdam, Netherlands
• [Presentation] Magnetic and dielectric properties of A_2CoSi_2O_7crystals (A=Ca, Sr, Ba) (2008)
  • Author(s): M. Akaki, et al.
  • Organizer: 25th international conference on Low Temperature Physics (LT25)
  • Place of Presentation: Amsterdam, Netherlands
• [Presentation] Orbital ordering and spin-singlet formation in vanadium oxides with a spinel-related structure (2008)
  • Author(s): T. Katsufuji, et al.
  • Organizer: 25th international conference on Low Temperature Physics (LT25)
  • Place of Presentation: Amsterdam, Netherlands
• [Presentation] Cr-doping effect on the orbital fluctuation of heavily doped Nd_<1-x>Sr_xMnO_3(x-0.625) (2008)
  • Author(s): R. Tasaki, et al.
  • Organizer: 53rd Annual Conference on Magnetism and Magnetic Materials
  • Place of Presentation: Austin, USA
• [Presentation] Mn酸化物の電荷軌道秩序融解高速イメージング (2008)
  • Author(s): 片倉稲子, 他
  • Organizer: 第5回強磁場スピン科学シンポジウム
  • Place of Presentation: 岡山大学
• [Presentation] フラストレーションが創る新しい物性 (2008)
  • Author(s): 赤星 大介, 他
  • Organizer: 第1回トピカルミーティング「フラストレート新規物質」
  • Place of Presentation: 京大会館
• [Presentation] Phase Control of Y1-xSrxCoO3-δ through A-site Cation Arrangement and Magnetic Field (2007)
  • Author(s): H. Kuwahara
  • Organizer: 4th International Symposium on High Magnetic Field Spin Science in 100T
  • Place of Presentation: Sendai
  • Year and Date: 2007-11-27
• [Presentation] Magnetic-Field Control of Dielectric Properties in Transutuin Metal Oxides with Spin Frustration (2007)
  • Author(s): M. Akaki
  • Organizer: 4th International Symposium on High Magnetic Field Spin Science in 100T
  • Place of Presentation: Sendai
  • Year and Date: 2007-11-27
• [Presentation] Comparative Study of Ordered- and Disordered- Y_1-xSr_xCoO_3-δ (2007)
  • Author(s): S. Fukushima
  • Organizer: 52nd Magnetism and Magnetic Materials Conference
  • Place of Presentation: Tempa,Florida,USA
  • Year and Date: 2007-11-09
• [Presentation] 秩序型Y_1-xSr_xCoO_3-δにおけるAサイトランダムネス効果 (2007)
  • Author(s): 福島瞬
  • Organizer: 日本物理学会第62回年次大会
  • Place of Presentation: 北海道大学
  • Year and Date: 2007-09-22
• [Presentation] RECoO_3及びPrMnO_3の電子構造 (2007)
  • Author(s): 山岸由希
  • Organizer: 日本物理学会第62回年次大会
  • Place of Presentation: 北海道大学
  • Year and Date: 2007-09-22
• [Presentation] 低次元磁性体Ca_2CoSi_2O_7結晶における磁場誘起焦電性 (2007)
  • Author(s): 赤木暢
  • Organizer: 日本物理学会第62回年次大会
  • Place of Presentation: 北海道大学
  • Year and Date: 2007-09-21
• [Presentation] 斜方晶RMnO3のAタイプ反強磁性相近傍における強誘電相の外部制御II (2007)
  • Author(s): 中村文暁
  • Organizer: 日本物理学会第62回年次大会
  • Place of Presentation: 北海道大学
  • Year and Date: 2007-09-21
• [Presentation] ペロブスカイト型酸化物における反射率の時間変化 (2007)
  • Author(s): 田先雷太
  • Organizer: 日本物理学会第62回年次大会
  • Place of Presentation: 北海道大学
  • Year and Date: 2007-09-21
• [Presentation] ペロブスカイト型酸化物における反射率の時間変化 (2007)
  • Author(s): 田先 雷太, 他
  • Organizer: 日本物理学会2007年秋季大会
  • Place of Presentation: 北海道大学
  • Year and Date: 2007-09-21
• [Presentation] 斜方晶RMnO3のAタイプ反強磁性相近傍における強誘電相の外場制御II (2007)
  • Author(s): 中村 文暁, 他
  • Organizer: 日本物理学会2007年秋季大会
  • Place of Presentation: 北海道大学
  • Year and Date: 2007-09-21
• [Presentation] 低次元磁性体Ca_2CoSi_2O_7結晶における磁場誘起焦電性 (2007)
  • Author(s): 赤木 暢, 他
  • Organizer: 日本物理学会2007年秋季大会
  • Place of Presentation: 北海道大学
  • Year and Date: 2007-09-21
• [Presentation] 軌道整列酸化物結晶における強磁場下での量子相制御 (2007)
  • Author(s): 赤星大介
  • Organizer: 特定領域"100テスラ領域の強磁場スピン科学
  • Place of Presentation: つくば,物質・材料研究機構
  • Year and Date: 2007-05-26
• [Presentation] Exploration of Novel Multiferroic Properties in Cobalt Oxides with Low Dimensional Structures (2007)
  • Author(s): M. Akaki
  • Organizer: 2007 CERC International Symposium
  • Place of Presentation: Akihabara Convention Hall
  • Year and Date: 2007-05-22
• [Presentation] δ Dependence of physical Properties of Ordered Y_1-xSr_xCoO_3-δ (2007)
  • Author(s): S. Fukushima
  • Organizer: 2007 CERC International Symposium
  • Place of Presentation: Akihabara Convention Hall
  • Year and Date: 2007-05-22
• [Presentation] Large magnetoresistance of heavily doped Nd_1-xSr_xMnO_3 (0.55≦x≦0.75) (2007)
  • Author(s): D. Akahoshi
  • Organizer: The International Confere Correlated Electron Systems
  • Place of Presentation: Houston, Texas, USA
  • Year and Date: 2007-05-15
• [Presentation] Magnetodielectric effects in low-dimensional cobalt oxides (2007)
  • Author(s): M. Akaki
  • Organizer: The International Conference on Strongly Correlated Electron Systems
  • Place of Presentation: Houston, Texas, USA
  • Year and Date: 2007-05-14
• [Presentation] Effects of stripe fluctuations and band-width control on the chemical potential shift in manganites (2007)
  • Author(s): K. Ebata
  • Organizer: 8th Korea-Japan-Taiwan Symposium on Strongly Correlated Electron Systems
  • Place of Presentation: Incheon,Korea
• [Presentation] Magnetodielectric Effects in Low-Dimensional Cobalt Oxides (2007)
  • Author(s): M. Akaki, et. al.
  • Organizer: SCES'07
  • Place of Presentation: Houston,Texas,USA.
• [Presentation] δDependence of Physical Properties of Ordered Y_<1-x>Sr_xCoO_<3-δ> (2007)
  • Author(s): S. Fukushima, et. al.
  • Organizer: 2007CERC International Symposium
  • Place of Presentation: Akihabara Convention Hall,Japan
• [Presentation] Exploration of Novel Multiferroic Properties in Cobalt Oxides with Low Dimensional Structures (2007)
  • Author(s): M. Akaki, et. al.
  • Organizer: 2007CERC International Symposium
  • Place of Presentation: Akihabara Convention Hall,Japan
• [Remarks]
  • URL: http://www.ph.sophia.ac.jp/~kuwa-ken/
• [Remarks]
  • URL: http://www.ph.Sophia.ac.jp/~kuwa-ken/