Study of equilibrium state of strongly correlated electron system using synchrotron radiation X-ray diffraction

2014 Fiscal Year Final Research Report

• Project/Area Number: 23244074
• 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 名古屋大学, 工学(系)研究科(研究院), 教授 (50215901)
• Co-Investigator(Kenkyū-buntansha): SUGIMOTO Kunihisa (財)高輝度光科学研究センター, 利用研究促進部門, 研究員 (00512807)
• Project Period (FY): 2011-04-01 – 2015-03-31
• Keywords: 放射光Ｘ線回折 / 構造解析 / 電荷密度解析 / 強相関電子系 / 量子液体

Outline of Final Research Achievements

Accurate structural study using synchrotron radiation X-ray diffraction was conducted for equilibrium state of strongly correlated electron system. We found an exotic spin-orbital magnetism in the hexagonal perovskite oxide Ba3CuSb2O9, which hosts a self-organized short-range structural order of a strong Jahn-Teller cation Cu2+. It was also possible to contribute to important new materials, such as new iron arsenic superconductors and a yellow-emitting phosphor, the Eu2+-doped chlorometasilicate Cl_MS, which can be used to create glareless white light-emitting diodes.

Free Research Field

構造物性