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2012 Fiscal Year Final Research Report

Charge transfer and charge disproportionation in A-site-orderedpervoskite oxides

Research Project

  • PDF
Project/Area Number 22740227
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Condensed matter physics II
Research InstitutionKyoto University

Principal Investigator

SAITO Takashi  京都大学, 化学研究所, 助教 (40378857)

Project Period (FY) 2010 – 2012
Keywords強相関系 / 遷移金属酸化物 / 異常高原子価イオン
Research Abstract

Unusually high valent cations are known have exotic electronic structure and cause interesting physical properties. In this project, charge disproportionation and charge transfer phenomena in A-site-ordered perovskites CaCu3Fe4O12 and LaCu3Fe4O12 containing unusually high valent cations were investigated and the mechanisms of these unusual phenomena were explained systematically. Such understandings will enable to design and develop novel functional materials.

  • Research Products

    (19 results)

All 2013 2012 2011 2010

All Journal Article (7 results) (of which Peer Reviewed: 4 results) Presentation (12 results)

  • [Journal Article] Frustration relieved ferrimagnetism in novel Aand B-site-ordered quadruple perovskite2013

    • Author(s)
      W. -T. Chen, M. Mizumaki, T. Sai to, and Y. Shimakawa
    • Journal Title

      Dalton Transactions, Advance Article/1-5

    • DOI

      DOI:10.1039/c3dt50489a

    • Peer Reviewed
  • [Journal Article] Magnetic interactions in A-site ordered perovskites LnCu3(Ge3/4Ga1/4)4O12 (Ln = La, Dy)2012

    • Author(s)
      T. Saito, R. Yamada, and Y. Shimakawa
    • Journal Title

      Inorg. Chem.

      Volume: 51 Pages: 5095-5098

    • DOI

      DOI:10.1021/ic202582z

  • [Journal Article] New A-site ordered perovskite-structure oxides with intriguing functional properties2012

    • Author(s)
      Y. Shi ma kawa, W. -T. Chen, and T. Saito
    • Journal Title

      Proceeding of the 2012 Powder Metallurgy World Congress

  • [Journal Article] Ligand-hole localization in oxides with unusual valence Fe2012

    • Author(s)
      W. T. Chen, T. Sai t o, N. Hayashi, M. Takano, and Y. Shimakawa
    • Journal Title

      Sci. Rep

      Volume: 2 Pages: 449/1-6

    • DOI

      DOI:10.1002/anie.201202644

    • Peer Reviewed
  • [Journal Article] Pressure Effect on Intersite Charge Transfer in A-site-Ordered Double-Perovskite-Structure Oxide2012

    • Author(s)
      Y. W. Long, T. Kawakami, W. T. Chen, T. Saito, T. Watanuki, Y. Nakakura, Q. Q. Liu, C. Q. Jin, and Y. Shimakawa
    • Journal Title

      Chem. Mater

      Volume: 24 Pages: 2234-2239

    • DOI

      DOI:10.1021/cm301267e

    • Peer Reviewed
  • [Journal Article] A-site magnetism in A-site-ordered perovskite-structure oxides2012

    • Author(s)
      Y. Shimakawa and T. Sai to
    • Journal Title

      Physica Status Solidi B

      Volume: 249 Pages: 423-434

    • DOI

      DOI:10.1002/pssb.201147477

  • [Journal Article] Direct observation of the ferrimagnetic coupling of A-site Cu and B-site Fe spins in charge-disproportionated CaCu3Fe4O122011

    • Author(s)
      M. Mizumaki, W. T. Chen, T. Sai to, I. Yamada, J. P. Attfield, and Y. Shimakawa
    • Journal Title

      Phys. Rev. B

      Volume: 84 Pages: 094418/1-4

    • DOI

      DOI:10.1103/PhysRevB.84.094418

    • Peer Reviewed
  • [Presentation] Exploration of Functional Materials Using High Pressures2013

    • Author(s)
      T. Saito
    • Organizer
      EPENET Kyoto Showcase and Workshop
    • Place of Presentation
      Kyoto, Japan
    • Year and Date
      2013-03-05
  • [Presentation] Synthesis of A-site-ordered perovskites under high pressures2012

    • Author(s)
      T. Saito and Y. Shimakawa
    • Organizer
      The 6th Asian Conference on High Pressure Research (ACHPR 6) & International Forum on High Pressure Sciences (IFHPS)
    • Place of Presentation
      Beijing, China
    • Year and Date
      2012-08-10
  • [Presentation] Structural and physical properties of A- and B-sites ordered double perovskites CaCu3Fe2B2O122012

    • Author(s)
      W. -T. Chen, T. Saito, M. Mizumaki, and Y. Shimakawa
    • Organizer
      Gordon Research Conferences on Solid State Chemistry
    • Place of Presentation
      New London, NH, USA
    • Year and Date
      2012-07-22
  • [Presentation] A-site-ordered perovskite ACu3B4O122012

    • Author(s)
      T. Saito
    • Organizer
      Japan-UK-Taiwan meeting "Synthesis and Properties of New Functional Materials"
    • Place of Presentation
      Kyoto, Japan
    • Year and Date
      2012-01-12
  • [Presentation] A-site-ordered perovskite ACu3B4O122012

    • Author(s)
      T. Saito
    • Organizer
      UK-Japan Meeting 2012 in Tokyo
    • Place of Presentation
      Tokyo, Japan
    • Year and Date
      2012-01-10
  • [Presentation] Aサイト秩序型ペロブスカイトCaCu3B4O12へのCuサイト置換効果2011

    • Author(s)
      齊藤 高志, 島川 祐一
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      富山市
    • Year and Date
      2011-09-23
  • [Presentation] A-site magnetism in A-site ordered perovskites2011

    • Author(s)
      T. Saito
    • Organizer
      Strategic UK-Japan Cooperative Programme "Functional Oxide Materials Discovery using Extreme Conditions" Project Meeting, "Synthesis and Properties of New Electronic Materials"
    • Place of Presentation
      Dryburgh, UK
    • Year and Date
      2011-02-23
  • [Presentation] High pressure synthesis, magnetic structure and physical propertie of A-site ordered perovskite LaCu3Fe4O122011

    • Author(s)
      W.T. Chen, Y. Long, T. Saito, and Y. Shimakawa
    • Organizer
      The 1st International Conference on MEXT Project of Integrated Research on Chemical Synthesis "Advanced Chemical Methodology for Creating Materials"
    • Place of Presentation
      Sapporo, Japan
    • Year and Date
      2011-01-24
  • [Presentation] High pressure synthesis of new A-site-ordered perovskites2010

    • Author(s)
      T. Saito, T. Tohyama, and Y. Shimakawa
    • Organizer
      PacifiChem 2010
    • Place of Presentation
      Honolulu, USA
    • Year and Date
      2010-12-17
  • [Presentation] A-Site Magnetism in A-Site-ordered Perovskites2010

    • Author(s)
      T. Saito, R. Yamada, H. Shiraki, and Y. Shimakawa
    • Organizer
      MRS Fall meeting
    • Place of Presentation
      Boston, USA
    • Year and Date
      2010-11-29
  • [Presentation] A サイト秩序型ペロブスカイトの高圧合成2010

    • Author(s)
      齊藤 高志, 遠山 武範, 白木 宏, 龍 有文, 島川 祐一
    • Organizer
      第51回高圧討論会
    • Place of Presentation
      仙台市
    • Year and Date
      2010-10-21
  • [Presentation] Charge transfer and charge disproportionation properties of the A-site-ordered perovskite solid solution (La/Ca)Cu3Fe4O122010

    • Author(s)
      陳 威廷, 齊藤 高志, 島川 祐一
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      堺市
    • Year and Date
      2010-09-24

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Published: 2014-08-29  

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