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2009 Fiscal Year Annual Research Report

物質新機能開発戦略としての精密固体科学:機能複合相関新物質の探索と新機能の探究

Research Project

Project/Area Number 19GS0207
Research InstitutionKyoto University

Principal Investigator

島川 祐一  Kyoto University, 化学研究所, 教授 (20372550)

Co-Investigator(Kenkyū-buntansha) 小野 輝男  京都大学, 化学研究所, 教授 (90296749)
東 正樹  京都大学, 化学研究所, 准教授 (40273510)
倉田 博基  京都大学, 化学研究所, 准教授 (50186491)
木村 滋  (財)高輝度光科学研究センター, 利用研究促進部門, 主幹研究員 (50360821)
小口 多美夫  広島大学, 大学院・先端物質科学研究科, 教授 (90253054)
Keywords固体化学 / 物質合成 / 微細加工 / 構造解析 / 電子状態計算
Research Abstract

本研究では新物質開発・新物性探索を中心に実験を進めているが、高圧合成法を用いて幾つかの新しいAサイト秩序型ペロブスカイト酸化物を見出し、放射光X線や電子顕微鏡を使ったナノ構造解析、第一原理計算による電子状態解析を進めた。その他、高圧法により合成されたBiCoO3の構造やスピン状態についても、実験と電子状態計算の両面から、その大きな歪みを持った結晶構造と特異なスピン状態についての理解が進んだ。また、無限層構造単結晶薄膜に関する研究では、CaFeO2への還元過程において、酸素の拡散に異方性があることを明らかにした(Nature Chemistry誌掲載)。この成果は、低温で動作可能な燃料電池などへの応用展開も考えられるため、イオン伝導体としての物性評価も今後進めていく予定である。電流-磁気機能複合相関に関しては、電流印加下のスピン波の速度や振幅の測定から、スピントロニクスで重要な材料定数であるスピン分極率などを定量的に評価することが可能であることを明らかにした。
評価技術に関しては、SPring-8放射光を利用した高分解能マイクロX線回折装置にシングルバンチ切り出しX線チョッパーシステムを組み合わせることに成功した。これにより、サブナノ秒オーダーの時分割マイクロX線回折測定が可能となった。走査型透過電子顕微鏡には電子エネルギー損失分光法を複合して、原子分解能像を観察しながら特定原子サイト近傍の電子構造を探索するサイト分解EELS法を開発した。物質合成グループが作製したLa2SnCuO6薄膜やCaFeO2.5薄膜についてナノレベルの構造歪みや欠陥構造を明らかにすることが出来た。

  • Research Products

    (62 results)

All 2010 2009 Other

All Journal Article (33 results) (of which Peer Reviewed: 33 results) Presentation (23 results) Remarks (4 results) Patent(Industrial Property Rights) (2 results)

  • [Journal Article] Anisotropic oxygen diffusion at low temperature in perovskite-structure iron oxides2010

    • Author(s)
      S.Inoue, et al.
    • Journal Title

      Nature Chemistry 2

      Pages: 213

    • Peer Reviewed
  • [Journal Article] Antiferromagnetic interaction between A'-site Mn spins in A-site-ordered perovskite YMn3A140122010

    • Author(s)
      T.Tohyama, et al.
    • Journal Title

      Inorg.Chem. 49

      Pages: 2492

    • Peer Reviewed
  • [Journal Article] Thermally formed conducting filaments in a single-crystalline NiO thin film2010

    • Author(s)
      M.Kawai, et la.
    • Journal Title

      Appl.Phys.Lett. 96

      Pages: 072106

    • Peer Reviewed
  • [Journal Article] Local conduction in junctions composed of Pt and single-crystalline Nb-doped SrTiO32010

    • Author(s)
      Kan, et al.
    • Journal Title

      Thin Solid Films 518

      Pages: 3246

    • Peer Reviewed
  • [Journal Article] One-pot hydrothermal synthesis of uniformly cubic Co3O4 nanocrystals2010

    • Author(s)
      Y.Teng, et al.
    • Journal Title

      Mater.Lett. 64

      Pages: 239

    • Peer Reviewed
  • [Journal Article] Spin Modes in Elliptical Nanorings in the Vortex State : Two-Dimensional Mapping by Micro-Focused Brillouin Light2010

    • Author(s)
      M.Madami, et al
    • Journal Title

      IEEE transactions on magnetics 46

      Pages: 199

    • Peer Reviewed
  • [Journal Article] Temperature dependence of the visibility in an electronic Mach-Zehnder interferometer2010

    • Author(s)
      M.Hashisaka, et al.
    • Journal Title

      Physica E 42

      Pages: 1091

    • Peer Reviewed
  • [Journal Article] Nonequilibrium Fluctuation Relations in a Quantum Coherent Conductor2010

    • Author(s)
      S.Nakamura, et al.
    • Journal Title

      Phys.Rev.Lett. 104

      Pages: 080602

    • Peer Reviewed
  • [Journal Article] High-Angular-Resolution Microbeam X-ray Diffraction with CCD Detector2010

    • Author(s)
      Y.Imai, et al.
    • Journal Title

      AIP Conf.Proc. 1212

      Pages: 30

    • Peer Reviewed
  • [Journal Article] Structural change of direct silicon bonding substrates by interfacial oxide out-diffusion annealing2010

    • Author(s)
      T.Kato, et al.
    • Journal Title

      Thin Solid Films 518

      Pages: S147

    • Peer Reviewed
  • [Journal Article] Simultaneous Measurements of Pico-Second Lattice and Charge Dynamics in Co-Fe Cyanides2010

    • Author(s)
      Y.Fukuyama, et al.
    • Journal Title

      Appl.Phys.Express 3

      Pages: 013003

    • Peer Reviewed
  • [Journal Article] Charge Disproportionation and Charge Transfer in A-site Ordered Perovskites Containing Iron2009

    • Author(s)
      Y.Shimakawa, M.Takano
    • Journal Title

      Z.Anorg.Allg.Chem. 635

      Pages: 1882

    • Peer Reviewed
  • [Journal Article] Direct observation of the pressure-induced charge redistribution in BiNiO3 by x-ray absorption2009

    • Author(s)
      M.Mizumaki, et al.
    • Journal Title

      Phys.Rev., B 80

      Pages: 233104

    • Peer Reviewed
  • [Journal Article] Various Valence States of Square-Coordinated Mn in A-Site-Ordered Perovskites2009

    • Author(s)
      Y.W.Long, et al.
    • Journal Title

      T.Amer.Chem.Soc. 131

      Pages: 16244

    • Peer Reviewed
  • [Journal Article] Site-resolved oxygen K-edge ELNES of the layered double perovskite La2CuSnO62009

    • Author(s)
      M.Haruta, et al.
    • Journal Title

      Phys.Rev.B 80

      Pages: 165123

    • Peer Reviewed
  • [Journal Article] Local analysis of the edge dislocation core in BaTiO3 thin film by STEM-EELS2009

    • Author(s)
      H.Kurata, et al.
    • Journal Title

      J.Microscopy 236

      Pages: 128

    • Peer Reviewed
  • [Journal Article] HAADF-STEM analysis of layered double perovskite La2CuSnO6 grown epitaxially2009

    • Author(s)
      M.Haruta, et al.
    • Journal Title

      J.Microscopy 236

      Pages: 100

    • Peer Reviewed
  • [Journal Article] Metallic versus insulating behavior in the A-site ordered perovskite oxides ACu3Co4O12(A=Ca and Y)2009

    • Author(s)
      T.Mizokawa, et al.
    • Journal Title

      Phys.Rev.B 80

      Pages: 125105

    • Peer Reviewed
  • [Journal Article] Intermetallic Charge Transfer in A-Site-Ordered Double Perovskite BiCu3Fe4O122009

    • Author(s)
      Y.W.Long, et al.
    • Journal Title

      Inorg.Chem. 48

      Pages: 5962

    • Peer Reviewed
  • [Journal Article] Observation of unipolar resistance switching in a single-crystalline NiO thin film grown on a Pt0.8Ir0.22009

    • Author(s)
      M.Kawai, et al.
    • Journal Title

      Appl.Phys.Lett. 95

      Pages: 012109

    • Peer Reviewed
  • [Journal Article] Synthesis, crystal structure, and magnetic properties of Bi3Mn4O12(NO3)oxynitrate comprising S=3/2 honeycomb2009

    • Author(s)
      O.Smirnova, et al.
    • Journal Title

      J.Amer.Chem.Soc. 131

      Pages: 8313

    • Peer Reviewed
  • [Journal Article] Current-Induced Control of Spin-Wave Attenuation2009

    • Author(s)
      S.-M.Seo, et al.
    • Journal Title

      Phys.Rev.Lett. 102

      Pages: 147202

    • Peer Reviewed
  • [Journal Article] Shape and thickness effects on the magnetization reversal of Py/Cu/Co nanostructures2009

    • Author(s)
      V.Bonanni, et al.
    • Journal Title

      J.Magn.Magn.Mater. 21

      Pages: 3038

    • Peer Reviewed
  • [Journal Article] Ferromagnetism and Electronic Structures of Nonstoichiometric Heusler-Alloy Fe3-xMnxSi Epilayers2009

    • Author(s)
      K.Hamaya, et al.
    • Journal Title

      Phys.Rev.Lett. 102

      Pages: 137204

    • Peer Reviewed
  • [Journal Article] Fixation of Orientated L10-FePt Nanoparticles on Si Substrates2009

    • Author(s)
      Y.Tamada, et al.
    • Journal Title

      Applied Physics Express 2

      Pages: 123001

    • Peer Reviewed
  • [Journal Article] Universality of bias- and temperature-induced dephasing in ballistic electronic interferometers2009

    • Author(s)
      Y.Yamauchi, et al.
    • Journal Title

      Phys.Rev.B 79

      Pages: 161306

    • Peer Reviewed
  • [Journal Article] Conductance anomaly and Fano factor reduction in quantum point contacts2009

    • Author(s)
      S.Nakamura, et al.
    • Journal Title

      Phys.Rev.B 79

      Pages: 201308

    • Peer Reviewed
  • [Journal Article] Noise measurement system at electron temperature down to 20mK with combinations of the low pass filters2009

    • Author(s)
      M.Hashisaka, et al.
    • Journal Title

      Appl.Phys.Lett. 95

      Pages: 132106

    • Peer Reviewed
  • [Journal Article] X-ray diffractometry for the structure determination of a submicrometre single powder grain2009

    • Author(s)
      N.Yasuda, et al.
    • Journal Title

      J.Synchrotron Rad. 16

      Pages: 352

    • Peer Reviewed
  • [Journal Article] Microstructures in directly bonded Si substrates2009

    • Author(s)
      Y.Ohara, et al.
    • Journal Title

      Solid-State Electronics 52

      Pages: 837

    • Peer Reviewed
  • [Journal Article] Peculiar Rashba Splitting Originating from the Two-Dimensional Symmetry of the Surface2009

    • Author(s)
      K.Sakamoto, et al.
    • Journal Title

      Phys.Rev.Lett. 103

      Pages: 156801

    • Peer Reviewed
  • [Journal Article] The surface Rashba effect : A k・p perturbation approach2009

    • Author(s)
      T.Oguchi, T.Shishidou
    • Journal Title

      J.Phys. : Condens.Matter 21

      Pages: 092001

    • Peer Reviewed
  • [Journal Article] First-Principles Study on the Magnetic Anisotropy in Multiferroic PbVO3 and BiCoO32009

    • Author(s)
      Y.Uratani, et al.
    • Journal Title

      J.Phys.Soc.Jpn. 78

      Pages: 084709

    • Peer Reviewed
  • [Presentation] Modification of Spin Wave Propagation by Current Injection2010

    • Author(s)
      T. Ono
    • Organizer
      American Physical Society March Meeting
    • Place of Presentation
      Portland, USA
    • Year and Date
      2010-03-17
  • [Presentation] Current-induced domain wall motion against magnetic field2010

    • Author(s)
      T.Ono
    • Organizer
      6th RIEC International Workshop on Spintronics
    • Place of Presentation
      Sendai
    • Year and Date
      2010-02-05
  • [Presentation] Group-theoretical study of surface Rashba effect2010

    • Author(s)
      小口多美夫
    • Organizer
      Symposium on Surface and Nano Science 2010
    • Place of Presentation
      Shizukuishi
    • Year and Date
      2010-01-15
  • [Presentation] 新しい配向による機能性酸化物の合成2009

    • Author(s)
      市川能也
    • Organizer
      日本MRS学術シンポジウム
    • Place of Presentation
      横浜
    • Year and Date
      2009-12-07
  • [Presentation] Oxide Thin Films with the Infinite-layer Structures2009

    • Author(s)
      島川祐一
    • Organizer
      RIKEN Workshop on "Emergent Phenomena of Correlated Materials"
    • Place of Presentation
      Saitama
    • Year and Date
      2009-12-04
  • [Presentation] Current-induced magnetization dynamics of nano-magnets -Domain wall motion & Vortex core switching2009

    • Author(s)
      T.Ono
    • Organizer
      International Symposium on Advanced Nanodevices and Nanotechnology
    • Place of Presentation
      Hawaii, USA
    • Year and Date
      2009-11-29
  • [Presentation] Frustrated S=3/2 honeycomb antiferromagnet Bi3Mn4O12(NO3)2009

    • Author(s)
      東正樹
    • Organizer
      Magnetism, superconductivity and phase transitions in novel and complex materials
    • Place of Presentation
      Kolkata, India
    • Year and Date
      2009-11-12
  • [Presentation] Surface Rashba effect : spin-orbit coupling and symmetry2009

    • Author(s)
      小口多美夫
    • Organizer
      The 3rd Theory Meets Industry International Workshop
    • Place of Presentation
      Nagoya
    • Year and Date
      2009-11-10
  • [Presentation] Charge disproportionation and charge transfer in A-site ordered perovskites2009

    • Author(s)
      島川祐一
    • Organizer
      7th Workshop on orbital physics and novel phenomena in transition-metal oxides
    • Place of Presentation
      Berlin, Germany
    • Year and Date
      2009-10-08
  • [Presentation] Large Positive Magnetoresistive Effect Induced by the Space-Charge Effect in Silicon2009

    • Author(s)
      K.Kobayashi
    • Organizer
      〓nternational IMR Workshop on Group IV Spintronics
    • Place of Presentation
      Sendai
    • Year and Date
      2009-10-05
  • [Presentation] 巨大な正方晶歪みを持つPbTiO3型ペロブスカイトPbVO3とBiCoO32009

    • Author(s)
      東正樹
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      熊本
    • Year and Date
      2009-09-26
  • [Presentation] 新しいAサイト秩序型ペロブスカイト酸化物での電荷分離と電荷移動:酸素ホールが生み出す異常転移2009

    • Author(s)
      島川祐一
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      熊本
    • Year and Date
      2009-09-25
  • [Presentation] 第一原理計算による強誘電体物性予測2009

    • Author(s)
      小口多美夫
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      熊本
    • Year and Date
      2009-09-25
  • [Presentation] New perovskite-type structure oxides : High-pressure synthesized bulks and epitaxially grown thin films2009

    • Author(s)
      島川祐一
    • Organizer
      Gordon Research Conferences
    • Place of Presentation
      Oxford, UK
    • Year and Date
      2009-09-02
  • [Presentation] Current-induced magnetization dynamics -Domain wall motion & Vortex core switching2009

    • Author(s)
      T.Ono
    • Organizer
      5th Handai Nanoscience and Nanotechnology International Symposium
    • Place of Presentation
      Osaka
    • Year and Date
      2009-09-01
  • [Presentation] Structural and dielectric properties of layered-structure oxide thin films2009

    • Author(s)
      島川祐一
    • Organizer
      IMF-ISAF-2009
    • Place of Presentation
      Xi'an, China
    • Year and Date
      2009-08-26
  • [Presentation] Giant piezoelectric response under a misfit strain in PbTiO3 : a first-principles study2009

    • Author(s)
      小口多美夫
    • Organizer
      IMF-12 & ISAF-18
    • Place of Presentation
      Xian, China
    • Year and Date
      2009-08-23
  • [Presentation] Current-induced domain wall motion in perpendicularly magnetized Co/Ni wires2009

    • Author(s)
      T.Ono
    • Organizer
      SPIE, NanoScience & Engineering, Spintronics II
    • Place of Presentation
      San Diego, USA
    • Year and Date
      2009-08-02
  • [Presentation] Ferromagnetic Cuprates CaCu3B4O12(B=Ge, Sn)Synthesized under High Pressure2009

    • Author(s)
      T.Saito, et al.
    • Organizer
      AIRAPT-22 & HPCJ-50
    • Place of Presentation
      Tokyo
    • Year and Date
      2009-07-31
  • [Presentation] Current-induced Domain Wall Motion in Perpendicularly Magnetized Co/Ni Wires2009

    • Author(s)
      T.Ono
    • Organizer
      20th International Colloquium on Magnetic Films and Surfaces
    • Place of Presentation
      Berlin, Germany
    • Year and Date
      2009-06-23
  • [Presentation] High DW velocity in Co/Ni with perpendicular anisotropy2009

    • Author(s)
      T.Ono
    • Organizer
      IEEE International Magnetics Conference
    • Place of Presentation
      Sacramento, USA
    • Year and Date
      2009-05-05
  • [Presentation] Large Positive Magnetoresistive Effect Induced by the Space-Charge Effect in Silicon2009

    • Author(s)
      K.Kobayashi
    • Organizer
      Korean Physical Society Meeting
    • Place of Presentation
      Daejon, Korea
    • Year and Date
      2009-04-23
  • [Presentation] Non-equilibrium Noise in Mesoscopic Systems2009

    • Author(s)
      K.Kobayashi
    • Organizer
      Physics Colloquium
    • Place of Presentation
      Busan, Korea
    • Year and Date
      2009-04-10
  • [Remarks] Nature Chemistry 誌に報告した「固体酸化物における低温での酸素イオン拡散の解明!-低温動作可能な固体酸化物燃料電池開発へ向けた新知見-」は関連記事が京都新聞(夕刊、8面)、経新聞(24面)、日経産業新聞(11面)、日刊工業新聞(26面)、科学新聞(1面)に掲載された他、Yahoo ニュースのトピックスにも掲載された。また、昨年度に Nature 誌に報告した「温度誘起サイト間電荷移動とそれによる負の熱膨張率の発見」は2009年5月に Nature Asia Pacific の Research Highlight に選出された。関連webページ

    • URL

      http://www.scl.kyoto-u.ac.jp/~shimakgr/

  • [Remarks]

    • URL

      http://home.hiroshima-u.ac.jp/fpc/

  • [Remarks]

    • URL

      http://sscl.kuicr.kyoto-u.ac.jp/indexj.html

  • [Remarks]

    • URL

      http://eels.kuicr.kyoto-u.ac.jp:8080/Root/

  • [Patent(Industrial Property Rights)] 圧電薄膜、圧電素子、圧電素子の製造方法、液体吐出ヘッドおよび超音波モータ2010

    • Inventor(s)
      久保田純, 他
    • Industrial Property Rights Holder
      キヤノン, 他
    • Industrial Property Number
      特願2010-045907
    • Filing Date
      2010-03-02
  • [Patent(Industrial Property Rights)] 磁気抵抗素子及び磁気感応スイッチ2009

    • Inventor(s)
      小林研介, 他
    • Industrial Property Rights Holder
      京都大学
    • Industrial Property Number
      特願2009-136275
    • Filing Date
      2009-06-05

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Published: 2011-06-16   Modified: 2016-04-21  

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