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

• Project/Area Number: 22740227
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Condensed matter physics II
• Research Institution: Kyoto University
• Principal Investigator: SAITO Takashi 京都大学, 化学研究所, 助教 (40378857)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: 強相関系 / 遷移金属酸化物 / 異常高原子価イオン / 異常高原子価 / サイト間電荷移動 / 電荷不均化 / 酸素ホール / Aサイト秩序型ペロブスカイト / 異常高原子値 / 電荷移動

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

• [Journal Article] Frustration relieved ferrimagnetism in novel Aand B-site-ordered quadruple perovskite (2013)
  • Author(s): W. -T. Chen, M. Mizumaki, T. Sai to, and Y. Shimakawa
  • Journal Title: Dalton Transactions, Advance Article/1-5 Volume: in press Issue: 28 Pages: 10116-10116
  • DOI: 10.1039/c3dt50489a
  • Peer Reviewed
• [Journal Article] Valence Change of A' -Site Mn by A-Site Doping in La_1-xNa_xMn_3Ti_4O_12. (2013)
  • Author(s): 遠山武範、Mark S. Senn、齊藤高志、Wei-tin Chen、Chiu C. Tang、J. Paul Attfield、島川祐一
  • Journal Title: Chemistry of Materials Volume: 25 Issue: 2 Pages: 178-183
  • DOI: 10.1021/cm303182u
  • Peer Reviewed
• [Journal Article] Site-Selective Doping Effect in AMn3V4O12 (A = Na+, Ca2+, and La3+) (2013)
  • Author(s): S. Zhang
  • Journal Title: J. Am. Chem. Soc. Volume: 135 Issue: 16 Pages: 6056-6060
  • DOI: 10.1021/ja308851f
  • 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 Issue: 9 Pages: 5095-5098
  • DOI: 10.1021/ic202582z
  • Peer Reviewed
• [Journal Article] New A-site ordered perovskite-structure oxides with intriguing functional properties (2012)
  • Author(s): Y. Shi ma kawa, W. -T. Chen, and T. Saito
  • Journal Title: Proceeding of the 2012 Powder Metallurgy World Congress
• [Journal Article] Polarization Rotation in the Monoclinic Perovskite BiCo_1-_xFe_xO_3 (2012)
  • Author(s): Kengo Oka, Tsukasa Koyama, Tomoatsu Ozaaki, Shigeo Mori, Yuichi Shimakawa, Masaki Azuma
  • Journal Title: Angewandte Chemie International Edition Volume: 51 Issue: 32 Pages: 7977-7980
  • DOI: 10.1002/anie.201202644
  • Peer Reviewed
• [Journal Article] Pressure Effect on Intersite Charge Transfer in A-site-Ordered Double-Perovskite-Structure Oxide (2012)
  • 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 Issue: 11 Pages: 2235-2239
  • DOI: 10.1021/cm301267e
  • Peer Reviewed
• [Journal Article] A-site magnetism in A-site-ordered perovskite-structure oxides (2012)
  • Author(s): Y. Shimakawa and T. Saito
  • Journal Title: Physica Status Solidi B Volume: 249 Issue: 3 Pages: 423-434
  • DOI: 10.1002/pssb.201147477
  • Peer Reviewed
• [Journal Article] New A-site ordered perovskite-structure oxides with intriguing functional properties (2012)
  • Author(s): Y. Shimakawa
  • Journal Title: Proceeding of the 2012 Powder Metallurgy World Congress Volume: 6F-T14
• [Journal Article] Material Design, Synthesis and Magnetic Properties of Novel A-Site-Ordered Perovskites AMn3Al4O12 (2012)
  • Author(s): T. Tohyama
  • Journal Title: Proceeding of the 2012 Powder Metallurgy World Congress Volume: 16F-T14
• [Journal Article] X-Ray Spectroscopic Studies of <i>A</i>-Site Ordered Perovskite LaMn₃<i>B</i>₄O₁₂(<i>B</i>=V, Cr) (2012)
  • Author(s): M. Mizumaki
  • Journal Title: e-Journal of Surface Science and Nanotechnology Volume: 10 Issue: 0 Pages: 575-577
  • DOI: 10.1380/ejssnt.2012.575
  • ISSN: 1348-0391
  • Peer Reviewed
• [Journal Article] Direct observation of the ferrimagnetic coupling of A-site Cu and B-site Fe spins in charge-disproportionated CaCu3Fe4O12 (2011)
  • Author(s): M.Mizumaki, Y.Shimakawa, et al
  • Journal Title: Phys.Rev.B Volume: 84 Issue: 9 Pages: 94-418
  • DOI: 10.1103/physrevb.84.094418
  • Peer Reviewed
• [Journal Article] Material Design and High-Pressure Synthesis of Novel A-Site-Ordered Perovskites AMn3Al4012 (A=Y, Yb, and Dy) (2011)
  • Author(s): 齊藤高志、遠山武範、島川祐一
  • Journal Title: Bulletin of the Chemical Society of Japan Volume: 84 Issue: 7 Pages: 802-806
  • DOI: 10.1246/bcsj.20100335
  • NAID: 130004152941
  • Peer Reviewed
• [Journal Article] Charge transfer and antiferromagnetic order in the A-site-ordered perovskite LaCu_3Fe_4O_<12> (2010)
  • Author(s): W.T.Chen, T.Saito, et al.
  • Journal Title: Journal of Materials Chemistry Volume: 20 Pages: 7282-7286
  • Peer Reviewed
• [Presentation] Exploration of Functional Materials Using High Pressures (2013)
  • Author(s): T. Saito
  • Organizer: EPENET Kyoto Showcase and Workshop
  • Place of Presentation: Kyoto, Japan
  • Year and Date: 2013-03-05
• [Presentation] Exploration of Functional Materials Using High Pressures (2013)
  • Author(s): T. Saito
  • Organizer: EPENET Kyoto Showcase and Workshop
  • Place of Presentation: Kyoto
  • Invited
• [Presentation] Synthesis of A-site-ordered perovskites under high pressures (2012)
  • 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 CaCu3Fe2B2O12 (2012)
  • 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] Magnetic and transport properties of A- and B-sites ordered double perovskites CaCu_3Fe_2B_2O_<12> (B=Ta, Re) (2012)
  • Author(s): 陳威廷, 齊藤高志, et al
  • Organizer: 日本物理会春季年会
  • Place of Presentation: 関西学院大学
  • Year and Date: 2012-03-26
• [Presentation] A-site-ordered perovskite ACu3B4O12 (2012)
  • 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 ACU_3B_4O_<12> (2012)
  • Author(s): 齊藤高志
  • Organizer: Japan-UK-Taiwan meeting
  • Place of Presentation: 京都大学宇治キャンパス(招待講演)
  • Year and Date: 2012-01-12
• [Presentation] A-site-ordered perovskite ACu3B4O12 (2012)
  • Author(s): T. Saito
  • Organizer: UK-Japan Meeting 2012 in Tokyo
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 2012-01-10
• [Presentation] Synthesis of A-site-ordered perovskites under high pressures (2012)
  • Author(s): T. Saito
  • Organizer: The 6th Asian Conference on High Pressure Research (ACHPR 6) & International Forum on High Pressure Sciences (IFHPS)
  • Place of Presentation: Beijing
  • Invited
• [Presentation] Charge disproportionation and charge transfer in A-site-ordered perovskite-structure oxides with unusually high-valence Fe (2012)
  • Author(s): Y. Shimakawa
  • Organizer: Gordon Research Conferences on Solod State Chemistry
  • Place of Presentation: New London
• [Presentation] Structural and physical properties of A- and B-sites ordered double perovskites CaCu3Fe2B2O12 (2012)
  • Author(s): W. -T. Chen
  • Organizer: Gordon Research Conferences on Solid State Chemistry
  • Place of Presentation: New London
• [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, et al
  • Organizer: 日本物理学会秋季大会
  • Place of Presentation: 富山大学
  • Year and Date: 2011-09-23
• [Presentation] Aサイト秩序型ペロブスカイトにおけるAサイト磁性 (2011)
  • Author(s): 齊藤高志, et al
  • Organizer: 粉体粉末冶金協会23年度春季大会大会
  • Place of Presentation: 早稲田大学
  • Year and Date: 2011-06-01
• [Presentation] A-site magnetism in A-site ordered perovskites (2011)
  • 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 LaCu3Fe4O12 (2011)
  • 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 perovskites (2010)
  • Author(s): T. Saito, T. Tohyama, and Y. Shimakawa
  • Organizer: PacifiChem 2010
  • Place of Presentation: Honolulu, USA
  • Year and Date: 2010-12-17
• [Presentation] High pressure synthesis of new A-site-ordered perovskites (2010)
  • Author(s): Takashi Saito, et al.
  • Organizer: 2010 International Chemical Congress of Pacific Basin Societies
  • Place of Presentation: アメリカ合衆国
  • Year and Date: 2010-12-17
• [Presentation] A-Site Magnetism in A-Site-ordered Perovskites (2010)
  • 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)Cu3Fe4O12 (2010)
  • 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