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Novel orbital states, domain structures, and the control of them by external fields in transition-metal oxides

Research Project

Project/Area Number 19340102
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Condensed matter physics II
Research InstitutionWaseda University

Principal Investigator

KATSUFUJI Takuro  Waseda University, 理工学術院, 教授 (00272386)

Co-Investigator(Kenkyū-buntansha) 上江洲 由晃  早稲田大学, 理工学術院, 教授 (10063744)
Co-Investigator(Renkei-kenkyūsha) UESU Yoshiaki  早稲田大学, 理工学術院, 教授 (10063744)
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥13,520,000 (Direct Cost: ¥10,400,000、Indirect Cost: ¥3,120,000)
Fiscal Year 2008: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2007: ¥9,360,000 (Direct Cost: ¥7,200,000、Indirect Cost: ¥2,160,000)
Keywords強相関系 / 遷移金属酸化物 / 軌道 / ドメイン
Research Abstract

スピネル構造をとる様々な遷移金属酸化物において、新奇な軌道秩序を新たに見出した。また、その軌道秩序状態のドメインを磁場によって制御し、巨大な磁歪、磁気誘電性を得ることに成功した。さらに、強誘電性と強誘電性が共存したマルチフェロイク物質において第二高調波発生(SHG)を初めて観測した。さらに、SHG顕微鏡の開発を進めて、深さ方向も含めた3次元断層写真を得ることに成功した。

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (31 results)

All 2009 2008 2007 Other

All Journal Article (26 results) (of which Peer Reviewed: 14 results) Presentation (5 results)

  • [Journal Article] Direct observation of a repeatable change in electronic states with applied electric voltage pulses in the metal-insulator-metal structure2009

    • Author(s)
      K. Azumi, K. Aoyama, S. Asanuma, Y. Uesu, and T. Katsufuji
    • Journal Title

      Phys. Rev. B 79

    • Related Report
      2008 Final Research Report
  • [Journal Article] Direct observation of a repeatable change in electronic states with appiied electric voltage pulses in the metal-insulator-metal structure2009

    • Author(s)
      K. Azumi, T. Katsufuji, et al.
    • Journal Title

      Phys. Rev. B 79

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Second Harmonic Generation from Multiferroic MnWO_42008

    • Author(s)
      A. Nogami, T. Suzuki, and T. Katsufuji
    • Journal Title

      J. Phys. Soc. Jpn 77

      Pages: 115001-115001

    • NAID

      110006983763

    • Related Report
      2008 Final Research Report
  • [Journal Article] Spin-singlet formation in the geometrically frustrated spinel oxide AlV_2O_4 : ^<51>V and ^<27>Al NMR measurements2008

    • Author(s)
      Y. Shimizu, M. Tanaka, M. Itoh, and T. Katsufuji
    • Journal Title

      Phys. Rev. B 78

      Pages: 144423-144423

    • Related Report
      2008 Final Research Report
  • [Journal Article] Magnetodielectric properties of spin-orbital coupled system Mn_3O_42008

    • Author(s)
      T. Suzuki, and T. Katsufuji
    • Journal Title

      Phys. Rev. B 77

    • Related Report
      2008 Final Research Report
  • [Journal Article] Structural and Magnetic Properties of Spinel FeV_2O_4 with Two Ions Having Orbital Degrees of Freedom2008

    • Author(s)
      T. Katsufuji, T. Suzuki, H. Takei, M. Shingu, K. Kato, K. Osaka, M. Takata, H. Sagayama, and T. Arima
    • Journal Title

      J. Phys. Soc. Jpn 77

      Pages: 53708-53708

    • NAID

      110006665985

    • Related Report
      2008 Final Research Report
  • [Journal Article] Magnetic excitations and orbital physics in the ferrimagnetic spinels MnB_2O_4 (B=Mn,V)2008

    • Author(s)
      J.-H. Chung, J.-H. Kim, S.-H. Lee, T. J. Sato, T. Suzuki, M. Katsumura, and T. Katsufuji,
    • Journal Title

      Phys. Rev. B 77

      Pages: 54412-54412

    • Related Report
      2008 Final Research Report
  • [Journal Article] Three-dimensional observations of polar domain structures using a confocal second-harmonic generation interference microscope2008

    • Author(s)
      J. Kaneshiro, S. Kawado, H. Yokota, Y. Uesu, and T. Fukui
    • Journal Title

      J. Appl.Phys 104

      Pages: 54112-54112

    • Related Report
      2008 Final Research Report
  • [Journal Article] Second Harmonic Generation from Multiferroic MnW042008

    • Author(s)
      A. Noganti, T. Suzuki, T. Katsufuji
    • Journal Title

      J. Phys. Soo. Jpn 77

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Magnetodielectric properties of spin-orbital coupled system Mn3042008

    • Author(s)
      T. Suzuki, T. Katsufuji
    • Journal Title

      Phys. Rev. B 77

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Structural and Magnetic Properties of Spinel FeV204 with Two Ions Having Orbital Degrees of Freedom2008

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

      J. Phys. Soo. Jpn. 77

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] SHG Tomography for Domain structure ObservationsAn Application to 3D Visualizations of Periodically Poled Domains2008

    • Author(s)
      S. Kawado, Y Uesu, et al.
    • Journal Title

      Ferroelectrios 368

      Pages: 261-265

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Three-dimensional observations of polar domain structures using a oonfocal seoond-harmonio generationinterference microscope2008

    • Author(s)
      J. Kaneshiro, Y. Uesu, et al.
    • Journal Title

      J. Appl. Phys. 104

    • Related Report
      2008 Annual Research Report
  • [Journal Article] 3D imaging of inverted domain structures by confocal SHG interference microscope2008

    • Author(s)
      H. Yokota, Y. Uesu, et al.
    • Journal Title

      Integrated Ferroeleotrics 98

      Pages: 156-160

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Structural and dielectric characterizations of relaxor/ferroelectric super lattice films Pb(Sc1/2Nb1/2)0-3/PbTi03 fabricated on a single-lattice scale2008

    • Author(s)
      S. Asanuma, Y. Uesu, et al.
    • Journal Title

      J. Appl. Phys. 103

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Magnetic impurities and itinerant carriers in doped SrTi03:Anomaious Hall resistivity2008

    • Author(s)
      D.Satoh, K.Okamoto, and T.Katsufuji
    • Journal Title

      Phys.Rev.B 77

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Magnetic excitations and orbital physics in the ferrimagnetic spinels MnB204 (B=Mn,V)2008

    • Author(s)
      J.-H.Chung and T.Katsufuji, et. al.
    • Journal Title

      Phys.Rev.B 77

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Nonvolatile memory effect of capacitance in polycrystalline spinel vanadates2007

    • Author(s)
      H. Takei, T. Suzuki, and T. Katsufuji
    • Journal Title

      Appl. Phys. Lett 91

      Pages: 72506-72506

    • Related Report
      2008 Final Research Report
  • [Journal Article] Three-dimensional observations of periodically poled domains in a LiT_aO_3 quasiphase matching crystal by second harmonic generation tomography2007

    • Author(s)
      Y. Uesu, H. Yokota, S. Kawado, J. Kaneshiro, S. Kurimura, N. Kato
    • Journal Title

      Appl. Phys. Lett 91

      Pages: 182904-182904

    • Related Report
      2008 Final Research Report
  • [Journal Article] Second-harmonic generation and x-ray diffraction studies of the pretransitional region and polar phase in relaxor K_<1-x>LixTaO_32007

    • Author(s)
      H. Yokota, Y. Uesu, C. Malibert, J. M. Kiat
    • Journal Title

      Phys.Rev. B 75

      Pages: 184113-184113

    • Related Report
      2008 Final Research Report
  • [Journal Article] Nonvolatile memory effect of capacitance in polycrystalline spinel vanadates2007

    • Author(s)
      H.Takei, T.Suzuki, and T.Katsufuji
    • Journal Title

      Appl.Phys.Lett 91

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Three-dimensional observations of periodically poled domains in a LiTa03 quasiphase matching crystal by second harmonic generation tomography2007

    • Author(s)
      Y.Uesu, H.Yokota, S.Kawado, J.Kaneshiro, S.Kurimura, and N.Kato
    • Journal Title

      Appl.Phys.Lett 91

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Syntheses of relaxor/ferroelectric superlattice thin filmsPb (Sc1/2Nb1/2)0-3/PbTi03 and their dielectric properties2007

    • Author(s)
      S.Asanuma, Y.Uesu, C.Malibert, and M.Kiat
    • Journal Title

      Appl.Phys.Lett. 90

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Origin of colossal dielectric response of CaCu3Ti4012 studied by usingCaTi03/CaCu3Ti4012/CaTi03 multilayer thin films2007

    • Author(s)
      M.Mitsugi and Y.Uesu, et. al.
    • Journal Title

      Appl.Phys.Lett. 90

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Second-harmonic generation and x-ray diffraction studies of the pretransitionalregion and polar phase in relaxor K (1-x)LixTa032007

    • Author(s)
      H.Yokota, Y.Uesu, C.Malibert, and M.Kiat
    • Journal Title

      Phys.Rev.B 75

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Impact of orbital degrees of freedom on geometrical frustration in Kagome-like magnets SrV_xGa_<12-x>O19

    • Author(s)
      J. Miyazaki, T. Sonehara, D. Akahoshi, H. Kuwahara, J. E. Kim, K. Kato, M. Takata, and T. Katsufuji
    • Journal Title

      Phys.Rev B (R) (in press)

    • Related Report
      2008 Final Research Report
  • [Presentation] Large magnetodielectric and magnetoelastic coupling in various transition metal oxides2008

    • Author(s)
      T. Katsufuji
    • Organizer
      The 1st APCTP Workshop on Multiferroics
    • Place of Presentation
      Pohang (Korea)(招待講演)
    • Year and Date
      2008-12-12
    • Related Report
      2008 Final Research Report
  • [Presentation] SHG tomography as a tool of material diagnosis2008

    • Author(s)
      Y. Uesu
    • Organizer
      9th RCBJ Symposium on Ferroelectricity
    • Place of Presentation
      Vilnius (Lithuania)(基調講演)
    • Year and Date
      2008-06-16
    • Related Report
      2008 Final Research Report
  • [Presentation] シンポジウム「強誘電体分域の測定法の新展開と新しい分域像」"SHGで見る分域像"2008

    • Author(s)
      上江洲由晃、横田紘子、川戸聡、金城純一、島本勇太、石渡信一、福井達雄
    • Organizer
      日本物理学会第63回年次大会
    • Place of Presentation
      大阪
    • Year and Date
      2008-03-23
    • Related Report
      2008 Final Research Report
  • [Presentation] Peculiar structural and dielectric properties of relaxor/ferroelectric super-lattice films fabricated on the single lattice scale2008

    • Author(s)
      Y. Uesu
    • Organizer
      WS on the Fundamental Physics of Ferroelectrics
    • Place of Presentation
      Williamsburg (USA)(招待講演)
    • Year and Date
      2008-02-11
    • Related Report
      2008 Final Research Report
  • [Presentation] Magnetoelastic and magnetodielectric properties of ferrimagnetic spinel vanadates2007

    • Author(s)
      T. Katsufuji
    • Organizer
      ISMMA 2007
    • Place of Presentation
      Jeju(Korea)(招待講演)
    • Year and Date
      2007-05-30
    • Related Report
      2008 Final Research Report

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Published: 2007-04-01   Modified: 2020-05-15  

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