酸化物超構造形成による非自明なスピン構造の創製と異常磁気伝導

2005 Fiscal Year Annual Research Report

• Project/Area Number: 16076205
• Research Institution: The University of Tokyo
• Principal Investigator: H・Y HWANG 東京大学, 大学院・新領域創成科学研究科, 助教授 (30361611)
• Co-Investigator(Kenkyū-buntansha): 川崎 雅司 東北大学, 金属材料研究所, 教授 (90211862) ; 十倉 好紀 東京大学, 大学院・工学系研究科, 教授 (30143382) ; 永長 直人 東京大学, 大学院・工学系研究科, 教授 (60164406) ; 寺倉 清之 北海道大学, 創成科学研究機構, 教授 (40028212)
• Keywords: 強相関電子系 / 表面・界面 / 磁性 / 低温物性

Research Abstract

実験においては、ペロブスカイト型酸化物を中心とした物質の界面などにおいて発生する異常な磁気状態の探索とその機構の研究を行った。まず、螺旋磁気構造の形成が古くから知られてFe、Co珪化物における磁気秩序の様子を調べた。本研究の特徴は、これまで粒子線回折などの波数空間での情報のみが得られる手法によって調べられていた螺旋磁気構造を、実空間においてローレンツ電子顕微鏡を用いて観測した点である。その結果、螺旋磁気構造のドメインや、転移の様子など、波数空間での観察では得られない情報が明らかになった。また、基礎物性およびデバイス応用の両方の観点から注目されているマンガン酸化物の界面のごく近傍の特性を調べ、ルテニウムを添加することでバルクの値に匹敵する保持力が界面近傍においても保存することを明らかにした。理論においては、モデル計算および第一原理計算を用いて異常磁気状態の研究を行った。まず、通常の半導体界面の形成過程と同様のバンドベンディングの概念が有効であるとし、モデル計算により通常の金属とドープされたモット絶縁体の界面における電子状態を調べた。その結果、界面のモット絶縁体側にきわめて興味深い状態が実現し、界面からの距離に応じて、キャリアのフィリングが整数量子化された領域が実現した。具体的には、界面側からバンド絶縁体・金属・モット絶縁体という三つの界面相が現われることがわかった。さらに、遍歴磁性体の電子状態について、平均場近似を出発点として乱雑位相近似、GW法などの手法を用いて検討を行った。

Research Products

• [Journal Article] Atomic Control of the Electronic Structure at Complex Oxide Heterointerfaces (2006)
  • Author(s): H.Y.Hwang
  • Journal Title: MRS Bulletin 31 Pages: 28
• [Journal Article] Why Some Interfaces Cannot be Sharp (2006)
  • Author(s): N.Nakagawa, H.Y.Hwang, D.A.Muller
  • Journal Title: Nature Materials 5 Pages: 204
• [Journal Article] Signature of Carrier-Induced Ferromagnetism in Ti_<1-x>Co_<x->x-O_<2-δ> : Exchange Interaction Between High-Spin Co^<2+> and The Ti 3d Conduction Band (2006)
  • Author(s): J.W.Quilty, et al.
  • Journal Title: Phys.Rev.Lett. 96 Pages: 27202
• [Journal Article] First Principles Investigation on Magnetic Circular Dichroism Spectra of Co-doped Anatase and Rutile TiO_2 (2006)
  • Author(s): Hogming Weng, et al.
  • Journal Title: Phys.Rev.B (in press)
• [Journal Article] Organic metal electrodes for controlled p- and n-type carrier injections in organic field-effect transistors (2006)
  • Author(s): Y.Takahashi, T.Hasegawa, Y.Abe, Y.Tokura, G.Saito
  • Journal Title: Applied Physics Letters 88 Pages: 073504
• [Journal Article] Evolution of spin-wave excitations in ferromagnetic metallic manganites (2006)
  • Author(s): F.Ye, P.C.Dai, J.A.Fernandez-Baca, H.Sha, H.Kawano-Furukawa, Y.Tomioka, Y.Tokura, J.D.Zhang
  • Journal Title: Physical Review Letters 96 Pages: 047204
• [Journal Article] Real-space observation of helical spin order (2006)
  • Author(s): M.Uchida, Y.Onose, Y.Matusi, Y.Tokura
  • Journal Title: Science 311 Pages: 359-361
• [Journal Article] Doping a Mott insulator : Physics of high-temperature superconductivity (2006)
  • Author(s): Patrick A.Lee, Naoto Nagaosa, Xiao-Gang Wen
  • Journal Title: Reviews of Modern Physics 78 Pages: 17-85
• [Journal Article] Generalized equation of motion for orbital dynamics in the presence of current (2006)
  • Author(s): Cheren CH, Nagaosa N
  • Journal Title: PHYSICAL REVIEW B 73(3) Pages: Art.No.035123
• [Journal Article] 強相関機能とその可能性 (2006)
  • Author(s): 宮坂茂樹, 十倉芳紀
  • Journal Title: セラミックス 3月号 Pages: 147
• [Journal Article] Dynamics of Localized Spins Coupled to the Conduction Electrons with Charge and Spin Currents (2006)
  • Author(s): Masaru Onoda, Naoto Nagaosa
  • Journal Title: PHYSICAL REVIEW LETTERS 96 Pages: Art.No.066603
• [Journal Article] Orbital Polarization in Itinerant Magnets (2005)
  • Author(s): I.V.Solovyev
  • Journal Title: Phys.Rev.Lett. 95 Pages: 267205, 104
• [Journal Article] Atomically Flat(110)SrTiO3 and Heteroepitaxy (2005)
  • Author(s): Y.Mukunoki, et al.
  • Journal Title: Applied Physics Letters 86 Pages: 171908
• [Journal Article] Oxygen Vacancies Shine Blue (2005)
  • Author(s): H.Y.Hwang
  • Journal Title: Nature Materials 4 Pages: 803
• [Journal Article] Variation of the Electronic Structure in Systematically Synthesized Sr_2MO_4 (M=Ti,V,Cr,Mn, and Co) (2005)
  • Author(s): J.Matsuno, Y.Okimoto, M.Kawasaki, Y.Tokura
  • Journal Title: Physical Review Letters 95 Pages: 176404
• [Journal Article] Colossal Electoro-Resistance Memory Effect at Metal/La_2CuO_4 Interfaces (2005)
  • Author(s): Akihito Sawa, et al.
  • Journal Title: Jpn.J.Appl.Phys 44・40 Pages: L1241-L1243
• [Journal Article] Evolution of ferromagnetic circular dichroism coincident with magnetization and anomalous Hall effect in Co-doped rutile TiO_2 (2005)
  • Author(s): H.Toyosaki et al.
  • Journal Title: Appl.Phys.Lett. 86 Pages: 182503
• [Journal Article] Ru-doped La_<0.6>Sr_<0.4>MnO_3 thin films as a coercivity tunable electrode for magnetic tunnel junctions (2005)
  • Author(s): H.Yamada, M.Kawasaki, Y.Tokura
  • Journal Title: Applied Physics Letters 86 Pages: 192505
• [Journal Article] Perovskite manganite magnetic tunnel junctions with enhanced coercivity contrast (2005)
  • Author(s): Y.Ishii et al.
  • Journal Title: Appl.Phys.Lett. 87 Pages: 22509
• [Journal Article] Spin-related magnetoresistance of n-type ZnO : Al and Zn_<1-x>Mn_xO : Al thin films (2005)
  • Author(s): T.Andrearczyk, et al.
  • Journal Title: Phys.Rev.B 72 Pages: 121309
• [Journal Article] Novel metallic ferromagnet Sr_2CoO_4 (2005)
  • Author(s): J.Matsuno et al.
  • Journal Title: Thin Solid Films 486 Pages: 113-116
• [Journal Article] A Ferromagnetic Oxide Semiconductor as Spin Injection Electrode in Magnetic Tunnel Junction (2005)
  • Author(s): Hidemi Toyosaki et al.
  • Journal Title: Jpn.J.Appl.Phys. 44・28 Pages: L896-L898
• [Journal Article] Gigantic Kerr rotation induced by a d-d transition resonance in MCr_2S_4(M=Mn,Fe) (2005)
  • Author(s): K.Ohgushi, T.Ogasawara, Y.Okimoto, S.Miyasaka, Y.Tokura
  • Journal Title: Physical Review B 72 Pages: 155114
• [Journal Article] Anomalous Pressure Dependence of the Superconducting Transition Temperature of β-Pyrochlore AO_<s_2>O_6 Oxides (2005)
  • Author(s): T.Muramatsu, N.Takeshita, C.Terakura, H.Takagi, Y.Tokura, S.Yonezawa, Y.Muraoka, Z.Hiroi
  • Journal Title: Physical Review Letters 95 Pages: 167004
• [Journal Article] Colossal Electro-Resistance Memory Effect at Metal/La_2CuO_4 Interfaces (2005)
  • Author(s): A.Sawa, T.Fujii, M.Kawasaki, Y.Tokura
  • Journal Title: Japanese Journal of Applied Physics 44 Pages: L1241
• [Journal Article] R-Dependence of Spin Exchange Interactions in RMnO_3(R=Rare-Earth Ions) (2005)
  • Author(s): R.Kajimoto, H.Mochizuki, H.Yoshizawa, H.Shintani, T.Kimura, Y.Tokura
  • Journal Title: Journal of Physical Society of Japan 74 Pages: 2430
• [Journal Article] Direct observation of ordered orbital of YTiO_3 by the X-ray magnetic diffraction technique (2005)
  • Author(s): M.Ito, N.Tuji, H.Adachi, H.Nakao, Y.Murakami, Y.Taguchi, Y.Tokura
  • Journal Title: Nuc.Inst.Meth. 238 Pages: 237
• [Journal Article] Control of threshold voltage in pentacene thin-film transistors using carrier doping at the charge-transfer interface with organic acceptors (2005)
  • Author(s): Y.Abe, T.Hasegawa, Y.Takahashi, T.Yamada, Y.Tokura
  • Journal Title: Applied Physics Letters 87 Pages: 153506
• [Journal Article] Observation of a Griffiths Phase in Paramagnetic La_<1-x>Sr_xMnO_3 (2005)
  • Author(s): J.Deisenhofer, D.Braak, H.-A.Krug von Niddta J.Hemberger, R.M.Eremina, V.A.Ivanshin, A.M.Balbashov, G.Jug, A.Loidl, T.Kimura, Y.Tokura
  • Journal Title: Physical Review Letters 95 Pages: 257202
• [Journal Article] Anticorrelation between ferromagnetism and ferroelectricity in perovskite manganites (2005)
  • Author(s): T.Goto, Y.Yamasaki, H.Watanabe, T.Kimura, Y.Tokura
  • Journal Title: Physical Review B 72 Pages: 220403
• [Journal Article] Electronically smecticlike liquid-crystal phase in a nearly half-doped manganite (2005)
  • Author(s): F.Ye, J.A.Fernanaez-Baca, Pengcheng Dai, J.W.Lynn, H.Kawano-Furukawa, H.Yoshizawa, Y.Tomioka, Y.Tokura
  • Journal Title: Physical Review B 72 Pages: 212404
• [Journal Article] Observation of Magnetic Ripple and Nanowidth Comains in a Layered Ferromagnet (2005)
  • Author(s): T.Asaka, T.Kimura, T.Nagai, X.Z.Yu, K.Kimoto, Y.Tokura, Y.Matsui
  • Journal Title: Physical Review Letters 95 Pages: 2272004
• [Journal Article] Quantitative analysis of Sr_2RuO_4 angle-resolved photoemission spectra : Many-body interactions in a model Fermi liquid (2005)
  • Author(s): N.J.C.Ingle., K.M.Shen, F.Baumberger, W.Meevasana, D.H.Lu, Z.-X.Shen, A.Damascelli, S.Nakatsuji, Z.Q.Mao Y.-Maeno, T.-Kimura, Y.Tokura
  • Journal Title: Physical Review B 72 Pages: 205114
• [Journal Article] Magnetic-field-induced transition in the lattice modulation of colossal magnetoelectric GdMnO_3 and TbMnO_3 compounds (2005)
  • Author(s): T.Arima, T.Goto, Y.Yamasaki, S.Miyasaka, K.Ishii, M.Tsubota, T.Inami, Y.Murakami, Y.Tokura
  • Journal Title: Physical Review B 72 Pages: 100102
• [Journal Article] Magneto-optical effect induced by spin chirality of the itinerant ferromagnet Nd_2Mo_2O_7 (2005)
  • Author(s): I.Kezsmarki, S.Onoda, Y.Taguchi, T.Ogasawara, M.Matsubara, S.Iguchi, N.Hanasaki, N.Nagaosa, Y.Tokura
  • Journal Title: Physical Review B 72 Pages: 094427
• [Journal Article] Impurity-induced transition to a Mott insulator in Sr_3Ru_2O_7 (2005)
  • Author(s): R.Mathieu, A.Asamitsu, Y.Kaneko, J.P.He, X.Z.Yu, R.Kumai, Y.Onose, N.Takeshita, T.Arima, H.Takagi, Y.Tokura
  • Journal Title: Physical Review B 72 Pages: 092404
• [Journal Article] Quantum neutral-ionic phase transition as investigate by Raman scattering and X-ray diffraction (2005)
  • Author(s): Y.Okimoto, R.Kumai, S.Horiuchi, H.Okamoto, Y.Tokura
  • Journal Title: Journal of Physical Society Japan 74 Pages: 2165
• [Journal Article] Determination of the intrinsic anomalous Hall effect of SrRuO_3 (2005)
  • Author(s): R.Mathieu, C.U.Jung, H.Yamada A.Asamitsu, M.Kawasaki, Y.Tokura
  • Journal Title: Physical Review B 72 Pages: 064436
• [Journal Article] Magnetic-field-induced polarization and depolarization in HoMn_2O_5 and ErMn_2O_5 (2005)
  • Author(s): D.Higashiyama, S.Miyasaka, Y.Tokura
  • Journal Title: Physical Review B 72 Pages: 064421
• [Journal Article] Orbital disordering and the metal-insulator transition with hole doping in perovskie-type vanadium oxides (2005)
  • Author(s): J.Fujioka, S.Miyasaka, Y.Tokura
  • Journal Title: Physical Review B 72 Pages: 024460
• [Journal Article] Eu_<0.5>Sr_<1.5>MnO_4:A three-dimensional XY spin glass (2005)
  • Author(s): R.Mathieu, A.Asamitsu, Y.Kaneko, J.P.He, Y.Tokura
  • Journal Title: Physical Review B 72 Pages: 014436
• [Journal Article] Perovskite manganite magnetic tunnel junctions with enhanced coercivity contrast (2005)
  • Author(s): Y.Ishii, H.Yamada, H.Sato, H.Akoh, M.Kawasaki, Y.Tokura
  • Journal Title: Applied Physics Letters 87 Pages: 022509
• [Journal Article] Magnetoelectric phase diagrams of orthorhombic RMnO_3(R=Gd,Tb,and Dy) (2005)
  • Author(s): T.Kimura, G.Lawes, T.Goto, Y.Tokura, A.P.Ramirez
  • Journal Title: Physical Review B 71 Pages: 224425
• [Journal Article] Impact of Ru doping in bilayered manganese oxide La_<1.2>Sr_<1.8>Mn_2O_7 (2005)
  • Author(s): Y.Onose, J.P.He, Y.Kaneko, T.Arima, Y.Tokura
  • Journal Title: Applied Physics Letters 86 Pages: 242502
• [Journal Article] Microscopy of magnetic transition in a layered manganite La_<2-2x>Sr_<1+2x>Mn_2O_7(x=0.32) (2005)
  • Author(s): M.Konoto, T.Kohashi, K.Koike, T.Arima, Y.Kaneko, T.Kimura, Y.Tokura
  • Journal Title: Physical Review B 71 Pages: 184441
• [Journal Article] Resonant Magnetoelectric X-ray Scattering in GaFeO_3 : Observation of Ordering of Toroidal Moments (2005)
  • Author(s): T.Arima, J.H.Jung, M.Matsubara, M.Kubota, J.P.He, Y.Kaneko, Y.Tokura
  • Journal Title: Journal of Physical Society of Japan 74 Pages: 1419
• [Journal Article] Room-Temperature Ferroelectricity and Gigantic Dielectric Susceptibility on a Supramolecular Architecture of Phenazine and Deuterated Chloranilic Acid (2005)
  • Author(s): S.Horiuchi, R.Kumai, Y.Tokura
  • Journal Title: J.Am.Chem.Soc. 127 Pages: 127
• [Journal Article] Interface transport properties and resistance switching in perovskite-oxide heterojunctions (2005)
  • Author(s): A.Sawa, T.Fujii, M.Kawasaki, Y.Tokura
  • Journal Title: Proc.SPIE Int.Soc.Opt.Eng. 5932 Pages: 59322C
• [Journal Article] Soft x-ray resonant diffraction in transition metal oxides (2005)
  • Author(s): K.Jessica Thomas, S.Grenier, J.P.Hill, F.C.Chou, Y.Tomioka, Y.Tokura, P.Abbamonte
  • Journal Title: Proc.SPIE Int.Soc.Opt.Eng. 5932
• [Journal Article] Novel metallic ferromagnet Sr_2CoO_4 (2005)
  • Author(s): J.Matsuno, Y.Okimoto, Z.Fang, X.Z.Yu, Y.Matsui, N.Nagaosa, H.Kumigashira, M.Oshima, M.Kawasaki, Y.Tokura
  • Journal Title: Thin Sol.Fil. 486 Pages: 113-116
• [Journal Article] Temperature dependence of colossal electro-resistance of Pro_<0.7>Ca_<0.3>MnO_3 thin films (2005)
  • Author(s): A.Odagawa, T.Kano, H.Adachi, H.Sato, I.H.Inoue, H.Akoh, M.Kawasaki, Y.Tokura
  • Journal Title: Thin Sol.Fil. 486 Pages: 75
• [Journal Article] Photoemission measurements of transition-metal oxides under laser illumination (2005)
  • Author(s): J.W.Quilty, J.-Y.Son, T.Mizokawa, D.Asakura, N.Motoyama, S.Uchida, T.Kimura, Y.Tokura
  • Journal Title: J.Elec.Spec.Rel.Phen. 144 Pages: 909
• [Journal Article] Soft-X-ray Raman scattering of La_<1-x>Sr_xTiO_3 (2005)
  • Author(s): T.Higuchi, T.Tsukamoto, T.Hattori, Y.Taguchi, Y.Tokura, S.Shin
  • Journal Title: J.Elec.Spec.Rel.Phen. 144 Pages: 853
• [Journal Article] High-resolution photoemission study of Nd_<1-x>Sr_xMnO_3 (2005)
  • Author(s): H.Fujiwara, A.Sekiyama, A.Higashiya, K.Konoike, M.Tsunekawa, A.Yamasaki, A.Irizawa, S.Imada, T.Muro, K.Noda, H.Kuwahara, Y.Tokura, S.Suga
  • Journal Title: J.Elec.Spec.Rel.Phen. 144 Pages: 807
• [Journal Article] Temperature-dependent magnetic circular dichroism in Mn 2p X-ray absorption spectra of Nd_<1-x>Sr_xMnO_3 (2005)
  • Author(s): Higashiyama, H.fujiwara, A.Sekiyama, K.Konoike, A.Yamasaki, S.Imada, S.Suga, H.Kuwahara, Y.Tokura
  • Journal Title: J.Elec.Spec.Rel.Phen. 144 Pages: 761
• [Journal Article] Ferromagnetic metal to spin-glass insulator transition in pyrochlore-type molybdates R_2Mo_2O_7 studied with photoemission and XMCD (2005)
  • Author(s): S.Imada, A.Higashiya, M.Okazaki, M.Kashida, A.Sekiyama, Y.Taguchi, M.Iwama, K.Ogusi, Y.Tokura, S.Suga
  • Journal Title: J.Elec.Spec.Rel.Phen. 144 Pages: 711
• [Journal Article] Bulk electronic structures of n-type superconductor Nd1.85Ce0.15CuO4 probed by high energy angle-resolved photoemission spectroscopy (2005)
  • Author(s): A.Tsunekawa, A.Sekiyama, S.Kasai, A.Yamasaki, H.Fujiwara, M.Sing, A.Shigemoto, S.Imada, Y.Onose, Y.Tokura, T.Muro, S.Suga
  • Journal Title: J.Elec.Spec.Rel.Phen. 144 Pages: 541
• [Journal Article] Strong electron correlation of Re 5d electrons in Ca_2FeReO_6 (2005)
  • Author(s): T.Saitoh, H.Iwasawa, H.Kato, Y.Tokura, N.Hamada, D.D.Sarma
  • Journal Title: J.Elec.Spec.Rel.Phen. 144 Pages: 337
• [Journal Article] Effect of pressure on the electrical resistivity of double perovskite Sr_2FeW_<0.75>MO_<0.25>O_6 (2005)
  • Author(s): S.Kaji, G.Oomi, Y.Tomioka, Y.Tokura
  • Journal Title: PHYSICA B 359 Pages: 1327
• [Journal Article] Clamp-type pressure cell for full structure determination of molecular single crystals up to 1.5 Gpa (2005)
  • Author(s): T.Hasegawa, R.Kumai, Y.Takahashi, Y.Tokura, H.Sawa
  • Journal Title: Rev.Sci.Instrum. 76 Pages: 073903
• [Journal Article] Entropy-driven reentrant behavior in CMR manganites (2005)
  • Author(s): Furukawa N, Motome Y, Nagaosa N
  • Journal Title: PHYSICA B-CONDENSED MATTER 359 Pages: 1228-1230
• [Journal Article] Gigantic enhancement of magnetochiral effect in photonic crystals (2005)
  • Author(s): Sawada K, Nagaosa N
  • Journal Title: APPLIED PHYSICS LETTERS 87(4) Pages: Art.No.042503
• [Journal Article] Spin current and magnetoelectric effect in noncollinear magnets (2005)
  • Author(s): Katsura H, Nagaosa N, Balatsky AV
  • Journal Title: PHYSICAL REVIEW LETTERS 95(5) Pages: Art.No.057205
• [Journal Article] Interfaces of correlated electron systems : Proposed mechanism for colossal electroresistance (2005)
  • Author(s): Oka T, Nagaosa N
  • Journal Title: PHYSICAL REVIEW LETTERS 95(26) Pages: Art.No.266403
• [Journal Article] Spin current and accumulation generated by the spin Hall insulator (2005)
  • Author(s): Onoda M, Nagaosa N
  • Journal Title: PHYSICAL REVIEW LETTERS 95(10) Pages: Art.No.106601
• [Journal Article] Role of relaxation in the spin Hall effect (2005)
  • Author(s): Onoda M, Nagaosa N
  • Journal Title: PHYSICAL REVIEW B 72(8) Pages: Art.No.081301
• [Journal Article] Nodal quasiparticle in pseuaogapped colossal magnetoresistive manganites (2005)
  • Author(s): Mannella N, Yang WL, Zhou XJ, Zheng H, Mitchell JF, Zaanen J, Devereaux TP, Nagaosa N, Hussain Z, Shen ZX
  • Journal Title: NATURE 438(7067) Pages: 474-478
• [Journal Article] Optical magnetoelectric effect in multiferroic materials : Evidence for a Lorentz force acting on a ray of light (2005)
  • Author(s): Sawada K, Nagaosa N
  • Journal Title: PHYSICAL REVIEW LETTERS 95(23) Pages: Art.No.237402
• [Patent(Industrial Property Rights)] 巨大電気抵抗メモ (2006)
  • Inventor(s): 十倉好紀, 赤穂博司, 川崎雅司, 澤彰仁, 藤井健志, 有馬孝尚, 徳永裕介, 金子良夫
  • Industrial Property Rights Holder: 十倉好紀, 赤穂博司, 川崎雅司, 澤彰仁, 藤井健志, 有馬孝尚, 徳永裕介, 金子良夫
  • Industrial Property Number: 特願2005-352878
  • Filing Date: 2006-03-01
• [Patent(Industrial Property Rights)] 光ファイバー素子 (2005)
  • Inventor(s): 十倉好紀, 嶋田義皓, 金子良夫
  • Industrial Property Rights Holder: 十倉好紀, 嶋田義皓, 金子良夫
  • Industrial Property Number: 特願2005-156557
  • Filing Date: 2005-05-30
• [Patent(Industrial Property Rights)] 光学装置 (2005)
  • Inventor(s): 十倉好紀, 有馬孝尚, 永長直人, 貴田徳明, 澤田桂, 金子良夫
  • Industrial Property Rights Holder: 十倉好紀, 有馬孝尚, 永長直人, 貴田徳明, 澤田桂, 金子良夫
  • Industrial Property Number: 特願2005-219891
  • Filing Date: 2005-07-29
• [Patent(Industrial Property Rights)] チタン酸バリウム単結晶の製造方法 (2005)
  • Inventor(s): 十倉好紀, 嶋田義皓, 金子良夫
  • Industrial Property Rights Holder: 十倉好紀, 嶋田義皓, 金子良夫
  • Industrial Property Number: 特願2005-165005
  • Filing Date: 2005-06-06
• [Patent(Industrial Property Rights)] 単結晶育成装置およびそれを用いた高圧単結晶製造方法 (2005)
  • Inventor(s): 十倉好紀, 富岡泰秀, 金子良夫, 長澤享
  • Industrial Property Rights Holder: 十倉好紀, 富岡泰秀, 金子良夫, 長澤享
  • Industrial Property Number: 特願2006-12546
  • Filing Date: 2005-07-15
• [Patent(Industrial Property Rights)] セーベック係数の評価方法 (2005)
  • Inventor(s): 川崎雅司 他1名
  • Industrial Property Rights Holder: トヨタ自動車株式会社, 国立大学法人東北大学
  • Industrial Property Number: 特願2005-180490
  • Filing Date: 2005-06-21
• [Patent(Industrial Property Rights)] 薄膜状試料の測定 (2005)
  • Inventor(s): 川崎雅司 他3名
  • Industrial Property Rights Holder: トヨタ自動車株式会社, 国立大学法人東北大学
  • Industrial Property Number: 特願2005-204853
  • Filing Date: 2005-07-13
• [Patent(Industrial Property Rights)] トランジスタおよび電子デバイス (2005)
  • Inventor(s): 西井潤弥, 他5名
  • Industrial Property Rights Holder: シャープ株式会社, 国立大学法人
  • Industrial Property Number: 特願2005-285521
  • Filing Date: 2005-09-29