Mechanism of a new memory phenomenon and control of physical properties of aπd system.

2011 Fiscal Year Final Research Report

• Project/Area Number: 22740226
• 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: MAESATO Mitsuhiko 京都大学, 大学院・理学研究科, 助教 (60324604)
• Project Period (FY): 2010 – 2011
• Keywords: πd伝導体 / 高圧 / 強磁場 / 磁場誘起相転移

Research Abstract

We have investigated anomalous magnetotransport properties of the. d hybrid conductor(DIETSe) 2X[X=FeCl_4, FeBr_4], having both itinerant.-electrons and localized d-electron spins. In order to elucidate the mechanism of anomalous magnetoresistance and memory phenomena triggered by a spin-flop transition of d-electron spins, we have performed physical property measurements under multi-extreme conditions. Precise studies at high pressures and high magnetic fields revealed the robust interplay between the electronic instability of highly one-dimensional.-electrons and the AF order of d-electron spins plays an important role in the peculiar magnetotransport property.

Research Products

• [Journal Article] Uniaxial Strain Effects on Mott and Superconducting Transitions in.-(ET) 2Cu2(CN) 3 (2011)
  • Author(s): Y. Shimizu, M. Maesato, G. Saito
  • Journal Title: J. Phys. Soc. Jpn. Volume: 80 Pages: 074702-1-7
  • DOI: DOI:10.1143/JPSJ.80.074702
  • Peer Reviewed
• [Journal Article] 一軸性歪み法を用いた有機導体の電子相制御 (2011)
  • Author(s): 近藤隆祐、前里光彦
  • Journal Title: 固体物理 Volume: 46(5) Pages: 241-258
• [Journal Article] Pressure-induced superconductivity and Mott transition in spin-liquid.-(ET) 2Cu2(CN) 3 probed by 13C-NMR (2010)
  • Author(s): Y. Shimizu, H. Kasahara, T. Furuta, K. Miyagawa, K. Kanoda, M. Maesato, G. Saito
  • Journal Title: Phys. Rev. B Volume: 81 Pages: 224508-1-5
  • DOI: DOI:10.1103/PhysRevB.81.224508
  • Peer Reviewed
• [Journal Article] A two-dimensional organic metal based on fullerene (2010)
  • Author(s): D. V. Konarev, S. S. Khasanov, A. Otsuka, M. Maesato, G. Saito, R. N. Lyubovskaya
  • Journal Title: Angew. Chem. Int. Ed. Volume: 49(28) Pages: 4829-4832
  • DOI: DOI:10.1002/anie.201001463
  • Peer Reviewed
• [Journal Article] Ionicity Phase Diagram of Trifluoromethyl-TCNQ(CF3TCNQ) Charge-Transfer Solids (2010)
  • Author(s): G. Saito, H. Ikegami, M. Maesato
  • Journal Title: Bull. Chem. Soc. Jpn. Volume: 83 Pages: 1462-1480
  • DOI: DOI:10.1246/bcsj.20100102
  • Peer Reviewed
• [Presentation] 擬一次元有機導体(DIETSe) 2FeBr4xCl4(1-x)の構造と物性 (2012)
  • Author(s): 川口玄太、前里光彦、北川宏、今久保達郎
  • Organizer: 日本化学会第92春季年会
  • Place of Presentation: 慶応大学
  • Year and Date: 20120325-28
• [Presentation] Pd-Cu合金ナノ粒子の合成と物性 (2012)
  • Author(s): 保坂祥輝, 小林浩和, 前里光彦, 山田鉄兵, 北川宏
  • Organizer: 日本化学会第92春季年会
  • Place of Presentation: 慶応大学
  • Year and Date: 20120325-28
• [Presentation] (DIETSe) 2MX4[M=Fe, Ga, X=Cl, Br]の強磁場物性 (2012)
  • Author(s): 前里光彦、川口玄太、北川宏、今久保達郎、齋藤軍治、A. Kiswandhi、D. Graf、J. S. Brooks
  • Organizer: 日本物理学会第67回年次大会
  • Place of Presentation: 関西学院大学
  • Year and Date: 20120324-27
• [Presentation] (DIETSe) 2FeCl4xBr4(1-x)の合成と物性 (2012)
  • Author(s): 川口玄太、前里光彦、北川宏、今久保達郎
  • Organizer: 日本物理学会第67回年次大会
  • Place of Presentation: 関西学院大学
  • Year and Date: 20120324-27
• [Presentation] Physical Properties of a Fullerene Conductor with Triangular Lattice (2012)
  • Author(s): M. Maesato、A. Otsuka、D. V. Konarev、S. S. Khasanov、R. N. Lyubovskaya、C. Michioka、K. Yoshimura、M. Uruichi、K. Yakushi、H. Kitagawa、G. Saito
  • Organizer: International workshop on Multifunctional Molecular Materials Based on Triangular Lattice
  • Place of Presentation: 京都大学
  • Year and Date: 20120216-17
• [Presentation] 擬一次元π-d系の磁場誘起スピン密度波転移 (2012)
  • Author(s): 前里光彦
  • Organizer: 新学術領域研究「分子自由度が拓く新物質科学」第6回領域会議
  • Place of Presentation: 岩沼屋、宮城県仙台市
  • Year and Date: 20120105-07
• [Presentation] High Magnetic Field Study of the.-d Hybrid Molecular Conductors(DIETSe) 2MX4[M=Fe, Ga, X=Cl, Br] (2012)
  • Author(s): M. Maesato
  • Organizer: Japan-Europe-US International Symposium for Young Generation
  • Place of Presentation: 東京工業大学
  • Year and Date: 2012-01-17
• [Presentation] High Magnetic Field Study of Multifunctional Molecular Conductors (2012)
  • Author(s): M. Maesato
  • Organizer: Half-day workshop : Development of Electronic Multifunction Based on Organic Triangular Spin Lattice
  • Place of Presentation: 名城大学
  • Year and Date: 2012-01-11
• [Presentation] 一軸性ひずみによる有機導体の物性制御 (2011)
  • Author(s): 前里光彦
  • Organizer: 第52回高圧討論会
  • Place of Presentation: 沖縄キリスト教学院
  • Year and Date: 20111109-11
• [Presentation] Spin-Charge Coupling in a Series of(DIETSe) 2FeX4 (2011)
  • Author(s): M. Maesato、G. Kawaguchi、T. Imakubo、H. Kitagawa、G. Saito
  • Organizer: 9th International Symposium on Crystalline Organic Metals Superconductors and Ferromagnets(ISCOM)
  • Place of Presentation: Gniezno、Poland
  • Year and Date: 20110925-30
• [Presentation] A layered fullerene conductor (2011)
  • Author(s): M. Maesato、A. Otsuka、D. V. Konarev、S. S. Khasanov、R. N. Lyubovskaya、C. Michioka、K. Yoshimura、H. Kitagawa、G. Saito
  • Organizer: International School & Symposium on Multifunctional Molecule-based Materials
  • Place of Presentation: Argonne National Laboratory、Argonne
  • Year and Date: 20110313-18
• [Presentation] 2次元フラーレン伝導体の物性 (2011)
  • Author(s): 前里光彦
  • Organizer: 新学術領域研究「分子自由度が拓く新物質科学」第4回領域会議
  • Place of Presentation: 東京大学本業キャンパス、小柴ホール、東京
  • Year and Date: 20110105-06
• [Presentation] 金属錯体の固体物性科学最前線-錯体化学と固体物性物理と生物物性の連携新領域創成をめざしてー (2010)
  • Author(s): 前里光彦
  • Organizer: 第4回東北大学G-COE研究会
  • Place of Presentation: 東北大学理学部、仙台
  • Year and Date: 20101203-04
• [Presentation] Conducting Properties of the Two-Dimensional Triangular Lattice System Based on Fullerene (2010)
  • Author(s): M. Maesato、A. Otsuka、D. V. Konarev、S. S. Khasanov、R. N. Lyubovskaya、M. Uruichi、K. Yakushi、H. Yamochi、H. Kitagawa、G. Saito
  • Organizer: The 10_th Japan-China Joint Symposium on Conduction and Photoconduction in Organic Solids and Related Phenomena
  • Place of Presentation: Kyoto、Japan
  • Year and Date: 20101017-20
• [Presentation] A two-dimensional conductor based on C60 (2010)
  • Author(s): M. Maesato、D. V. Konarev、A. Otsuka、S. S. Khasanov、R. N. Lyubovskaya、G. Saito
  • Organizer: International and Interdisciplinary Workshop on Novel Phenomena in Integrated Complex Sciences : from Non-living to Living Systems
  • Place of Presentation: Coop-Inn Kyoto、Kyoto
  • Year and Date: 20101011-14
• [Presentation] 2次元フラーレン伝導体の物性 (2010)
  • Author(s): 前里光彦、大塚晃弘、D. V. Konarev、S. S. Khasanov、R. N. Lyubovskaya、矢持秀起、北川宏、齋藤軍治
  • Organizer: 日本物理学会2010年秋季大会
  • Place of Presentation: 大阪府立大学中百舌鳥キャンパス、大阪
  • Year and Date: 20100923-26
• [Presentation] Physical Properties of All-Organic Layered Fullerene Conductor (2010)
  • Author(s): M. Maesato、D. V. Konarev、M. Sakata、A. Otsuka、S. S. Khasanov、R. N. Lyubovskaya、G. Saito
  • Organizer: International Conference on Science and Technology of Synthetic Metals(ICSM)
  • Place of Presentation: Kyoto International Conference Center, Kyoto, Japan
  • Year and Date: 20100704-09
• [Presentation] Spin-related phenomena in organic materials (2010)
  • Author(s): M. Maesato、A. Otsuka、D. V. Konarev、S. S. Khasanov、R. N. Lyubovskaya、G. Saito
  • Organizer: ISSP-MDF Joint International meeting
  • Place of Presentation: University of Tokyo
  • Year and Date: 20100701-03