Construction of charge density analysis system for strong correlated electron materials using synchrotron radiation X-ray diffraction method

2010 Fiscal Year Final Research Report

• Project/Area Number: 20244059
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: Nagoya University
• Principal Investigator: SAWA Hiroshi Nagoya University, 工学研究科, 教授 (50215901)
• Co-Investigator(Kenkyū-buntansha): OHSUMI Hiroyuki 理化学研究所, 播磨研究所, 研究員 (90360825)
• Co-Investigator(Renkei-kenkyūsha): NISHIBORI Eiji 名古屋大学, 大学院・工学研究科, 准教授 (10293672)
• Project Period (FY): 2008 – 2010
• Keywords: 強相関系 / 放射光 / 精密構造解析 / 電子密度解析

Research Abstract

As for the new diffractometer for single crystals at BL02B1 in SPring-8 started up by this project, it was verified that there is an enough performance in this facility. If it is an alloy system crystal at ten-micron cubic, the ultra high resolution measurement of ca. 0.2 Å in the reciprocal lattice space necessary for the precise structure analysis is possible. The introduction of the refrigerators was achieved by cooperation with SPring-8 facilities, and the measurement in the temperature range from 8K to 500K became available. In this research project, some typical molecular orbital analyses of the molecular conductor system and the charge or orbital ordered state had been achieved. It was also elucidated by using this beam line of the structural and physical properties of a metallic cation endohedral fullerene Li@C_<60>.

Research Products

• [Journal Article] Transient photoinduced 'hidden' phase in a manganite. (2011)
  • Author(s): H.Ichikawa, S.Nozawa, T.Sato, A.Tomita, K.Ichiyanagi, M. Chollet, L.Guerin, N.Dean, A.Cavalleri, S.Adachi, T.Arima, H.Sawa, Y.Ogimoto, M.Nakamura, R.Tamaki, K.Miyano, S.Koshihara
  • Journal Title: Nature Materials 10 Pages: 101-105
  • Peer Reviewed
• [Journal Article] Nitrated Benzyne Derivatives of La@C_<82> : Addition of NO_2 and Its Positional Directing Effect on the Subsequent Addition of Benzynes. (2010)
  • Author(s): X.Lu, H.Nikawa, T.Tsuchiya, *T.Akasaka, M.Toki, H.Sawa, N.Mizorogi, S.Nagase
  • Journal Title: Angew.Chem.Int.Ed. 49 Pages: 594-597
  • Peer Reviewed
• [Journal Article] Single-Component Molecular Conductor[Cu(tmdt)_2] Containing an Antiferromagnetic Heisenberg Chain. (2010)
  • Author(s): B.Zhou, H.Yajima, A.Kobayashi, Y.Okano, H.Tanaka, T.Kumashiro, E.Nishibori, H.Sawa, H.Kobayashi
  • Journal Title: Inorg.Chem. 49 Pages: 6740-6747
  • Peer Reviewed
• [Journal Article] A layered ionic crystal of polar Li@C_<60>superatoms. (2010)
  • Author(s): S.Aoyagi, E.Nishibori, *H.Sawa, K.Sugimoto, M.Takata, Y.Miyata, R.Kitaura, H.Shinohara, H.Okada, T.Sakai, Y.Ono, K.Kawachi, K.Yokoo, S.Ono, K.Omote, Y.Kasama, S.Ishikawa, T.Komuro, *H.Tobita
  • Journal Title: Nature Chem. 2 Pages: 678-683
  • Peer Reviewed
• [Journal Article] Experimental charge density study of (DBr-DCNQI)_2Cu for metallic phase by synchrotron X-ray diffraction. (2010)
  • Author(s): S.Maki, E.Nishibori, H.Okabayashi,R.Sato, S.Aoyagi, H.Sawa, R.Kato
  • Journal Title: Physica B 405 Pages: 321-323
  • Peer Reviewed
• [Journal Article] Growth of Nanocrystals in a Single Crystal of Different Materials : A Way of Giving Function to Molecular (2010)
  • Author(s): T.Naito, A.Kakizaki, T.Inabe, R.Sakai, E.Nishibori, H.Sawa
  • Journal Title: Crystals.Cryst.Growth Des. 11 Pages: 501-506
  • Peer Reviewed
• [Journal Article] Superconducting properties of noncentrosymmetric CaIrSi_3. (2010)
  • Author(s): G.Eguchi, D.C.Peets, M.Kriener, S.Maki, E.Nishibori, H.Sawa, Y.Maeno
  • Journal Title: Physica C 470 Pages: 762-763
  • Peer Reviewed
• [Journal Article] Crystallographic and superconducting properties of the fully gapped noncentrosymmetric 5d-electron superconductors CaMSi_3(M=Ir, Pt). (2010)
  • Author(s): G.Eguchi, D.C.Peets, M.Kriener, Y.Maeno, E.Nishibori, Y.Kumazawa, K.Banno, S. Maki, H.Sawa
  • Journal Title: Phys.Rev.B 83 Pages: 024512
  • Peer Reviewed
• [Journal Article] Size of orbital-ordering domain controlled by the itinerancy of the 3d electrons in a manganite thin film. (2009)
  • Author(s): Y.Wakabayashi, H.Sagayama, T.Arima,M.Nakamura, Y.Ogimoto, Y.Kubo, K.Miyano, H.Sawa
  • Journal Title: Phys.Rev.B 79 Pages: 220403
  • Peer Reviewed
• [Journal Article] Organic Superconductivity Enhanced by Asymmetric-Anion Random Potential in (MDT-TS)I_<0.85>Br_<0.41>[MDT-TS=5H-2-(1,3-diselenole-2-ylidene)-1,3,4,6-tetrathiapentalene]. (2009)
  • Author(s): Y.Bando, T.Kawamoto, T.Mori, T.Kakiuchi, H.Sawa, K.Takimiya, T.Otsubo
  • Journal Title: Chem.Mater. 21 Pages: 3521-3525
  • Peer Reviewed
• [Journal Article] Rotational Sublevels of an Ortho-Hydrogen Molecule Encapsulated in an Isotropic C_<60> (2009)
  • Author(s): Y.Kohama, T.Rachi, J.Jing, Z.Li, J.Tang, R.Kumashiro, S.Izumisawa, H.Kawaji, T.Atake, H.Sawa, Y.Murata,K.Komatsu, K.Tanigaki
  • Journal Title: Cage.Phys.Rev.Lett. 103 Pages: 073001
  • Peer Reviewed
• [Journal Article] Structural study on Pr_<0.55>(Ca_<1-y>Sr_y)_<0.45>MnO_3 thin films on perovskite (011) substrate. (2009)
  • Author(s): Y.Wakabayashi, N.Takubo, K.Miyano, H.Sawa
  • Journal Title: Eur.Phys.J. Special Topics 167 Pages: 67-71
  • Peer Reviewed
• [Journal Article] Bis-Carbene Adducts of Non-IPR La@C_<72> : Localization of High Reactivity around Fused Pentagons and Electrochemical Properties. (2008)
  • Author(s): X.Lu, H.Nikawa, T.Tsuchiya, Y.Maeda,M.O.Ishitsuka, T.Akasaka, M.Toki,H.Sawa, Z.Slanina, N.Mizorogi, S.Nagase
  • Journal Title: Angew.Chem.Int.Ed. 47 Pages: 8642-8645
  • Peer Reviewed
• [Journal Article] OrbitalOrdering Structures in (Nd,Pr)_<0.5>Sr_<0.5>MnO_3 Manganite Thin Films on Perovskite (011) Substrates. (2008)
  • Author(s): Y.Wakabayashi, D.Bizen, Y.Kubo, H.Nakao, Y.Murakami, M.Nakamura, Y.Ogimoto, K.Miyano, H.Sawa
  • Journal Title: J.Phys.Soc.Jpn. 77 Pages: 014712
  • Peer Reviewed
• [Presentation] 放射光構造解析による格子構造とラットリング (2010)
  • Author(s): 澤博
  • Organizer: 日本物理学会2010秋季大会
  • Place of Presentation: 大阪府立大学(oral)
  • Year and Date: 20100923-20100926
• [Presentation] 放射光X 線精密構造解析によるTi酸化物の軌道秩序の直接観測 (2010)
  • Author(s): 澤博, 岡林弘卓, 西堀英治, 田口康二郎, 有馬孝尚, 十倉好紀
  • Organizer: 日本物理学会第65回年次大会
  • Place of Presentation: 岡山大学津島キャンパス(oral)
  • Year and Date: 20100320-20100323
• [Presentation] Challenge to Atomic Orbital Visualization by0.2 A Resolution Synchrotron Radiation Single Crystal Experiment. AsCA'09 (2009)
  • Author(s): H.Sawa, E.Nishibori, S.oyagi
  • Place of Presentation: Beijing, China (oral)
  • Year and Date: 20091022-20091025
• [Presentation] SPring-8 における構造物性研究の新たな方向性 (2009)
  • Author(s): 澤博
  • Organizer: 第13回SPring-8シンポジウム
  • Place of Presentation: 東京ステーションコンファレンス5階(oral)
  • Year and Date: 20090903-20090904
• [Presentation] 内包C60の精密構造解析 (2009)
  • Author(s): 澤博
  • Organizer: 第37回フラーレン・ナノチューブ総合シンポジウムつくば国際会議場
  • Place of Presentation: エポカルつくば(特別講演)(oral)
  • Year and Date: 20090901-20090903
• [Presentation] 放射光X線を用いた単結晶MEM解析による分子性物質系の分子軌道の直接観測 (2009)
  • Author(s): 澤博
  • Organizer: 第26回PFシンポジウム
  • Place of Presentation: つくば国際会議場エポカル(oral)
  • Year and Date: 20090324-20090325
• [Presentation] a-(ET)2_I_3の常圧下での構造解析による電荷不均化の観測 (2009)
  • Author(s): 澤博
  • Organizer: 京都大学基礎物理学研究所研究会「分子性導体における質量ゼロのディラック粒子とその新展開」京都大学基礎物理学研究所
  • Place of Presentation: (oral)
  • Year and Date: 2009-07-03
• [Presentation] The Role of Precise Structure Analysis for Molecular Crystal System (2008)
  • Author(s): 澤博
  • Organizer: Institute of Material Structure Science-Symposium.
  • Place of Presentation: Tsukuba, Japan.(oral)
  • Year and Date: 20081016-20081017
• [Presentation] Geometrical Frustration and Charge Ordering of Molecular Conductor (2008)
  • Author(s): 澤博
  • Organizer: The 21st IUCr Satellite Meeting "Molecular Crystals Exhibiting Exotic Functions".
  • Place of Presentation: Osaka Japan.(oral)
  • Year and Date: 20080821-20080822
• [Presentation] Charge ordering state of molecular conductor detected by synchrotron radiation x-raydiffraction. (2008)
  • Author(s): 澤博
  • Organizer: International Symposium on Molecular Conductors
  • Place of Presentation: Okazaki, Japan. (oral)
  • Year and Date: 20080723-20080725
• [Book] Chapter 5. Study of the novel charge ordering state in molecular conductors using synchrotron radiation X-ray diffraction (18pages) Molecular Electronic and Related Materials- Control and Probe with Light Editor Toshio Naito (2010)
  • Author(s): Hiroshi Sawa, Toru Kakiuchi
  • Publisher: Transworld Research Network