Microscopic structure of ion irradiated materials by TIARA

Yoneda, Yasuhiro   ; Nishihata, Yasuo; Abe, Hiroshi; Uchida, Hirohisa*; Matsumura, Yoshihito*; Takeuchi, Mitsuaki*; Tanakamaru, Tempei*; Shinohara, Yoshiaki*

The material group that is called smart materials of ferroelectrics, magneto-strictive materials, shape-memory alloys, and hydrogen-storage materials can control physical properties by the elastic strain caused in the crystal. Because the irradiation by the ion beam and the electron beam can efficiently change the elastic strain in the crystal, it is efficient measures to the characteristic modification of a smart material. In this study group, pair-distribution function (PDF) was applied as an new visualization techniques of the crystallographic structure of the irradiation material. It examined whether the irradiation effect of smart materials was extractive by the PDF analysis.