Visualization of midde-range order structure in ferroelectric materials with the method of atomic pair-distribution function

2016 Fiscal Year Final Research Report

• Project/Area Number: 26400326
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Condensed matter physics I
• Research Institution: Japan Atomic Energy Agency
• Principal Investigator: YONEDA YASUHIRO 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 物質科学研究センター, 研究主幹 (30343924)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 放射光X線 / 電気電子材料 / セラミックス

Outline of Final Research Achievements

We succeeded in visualization of the middle-range order structure by improving the real space resolution of atomic pair-distribution function provided by synchrotron radiation source of high-energy X-ray diffraction. We observed not only local structures of relaxor ferroelectric materials and the nano sized ferroelectric crystals, in which ferroelectric mechanism inside the cluster was elucidated but also the cluster size itself.

Free Research Field

X線結晶学