Institute of Multidisciplinary Research for Advanced Materials, Tohoku University


LAST UPDATE 2021/05/06

  • 研究者氏名
    Researcher Name

    高田昌樹 Masaki TAKATA
    教授 Professor
  • 所属
    Professional Affiliation

    Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

    計測研究部門 放射光ナノ構造可視化研究分野
    Division of Measurements, Synchrotron Radiation Soft X-ray Microscopy
  • 研究キーワード
    Research Keywords

    Synchrotron Radiation
    Structure Science
    Materials Science
    Charge Density
Research Subject
Development of Materials Structural Visualization Science via Synchrotron Radiation

研究の背景 Background


Of particular interest is to specify a structure-property protocol for novel functional material design. Thus, there is a big demand for advancement of X-ray charge density study using high brilliance synchrotron radiation source to map out precise electron distribution in materials. Evolving synchrotron light source, such as Diffraction-Limited Storage Ring(DLSR) is a key to bring innovation to structural visualization at electron density level in Materials Science.

研究の目標 Outcome


Our goal is to develop an advanced method for not only charge density but also electrostatic potential mapping from Xray data with high brilliance and coherent light source. Obtained electrostatic potential shall visualize an interaction among atoms and molecules in materials and represent a clue to the protocol for designing function of material.

研究図Research Figure

Fig.1. MaxEnt Electrostatic Potential Visualization by SR Diffraction Data and Electronic Polarization found in Layerd Ferroelectric Material, Bi2SiO5. Fig.2. Orbital Order & Charge Order in Manganite Visualized in MaxEnt Electrostatic Potential using Synchrotron Radiation Data. Fig.3. Electric-Field-Induced OrthPara Conversion of Hydrogen Found in MaxEnt Electric Field of Metal Organic Framework (MOF)

文献 / Publications

J. of Phys. Soc. Jpn Letters, 68 (1999) 2190-2193, Science, 298 (2002) 2358-2361, Angew. Chem. Int. Ed. 44 (2005) 920-923, Acta Cryst. A64 (2008) 232-245, IUCrJ , 1 (3), (2014)160-164, Royal Society Open Science(2015),