Isotope fractionation in AgI super-ionic conductor by centrifugation

遠心処理によるAgI超イオン伝導体の同位体分別効果

小野 正雄  ; 岡安 悟  ; 井口 裕介*; 江坂 文孝  ; 石塚 悦男   ; 大澤 崇人  ; 緒方 裕大; 真下 茂*

Ono, Masao; Okayasu, Satoru; Iguchi, Yusuke*; Esaka, Fumitaka; Ishitsuka, Etsuo; Osawa, Takahito; Ogata, Yudai; Mashimo, Tsutomu*

We are investigating the isotope fractionation in solid or liquid under strong centrifugal acceleration field. In this study, we have performed the ultracentrifuge experiments on -AgI super ionic conductor samples. All centrifuged samples keep their stoichiometry. The isotope ratio of Ag / Ag on centrifuged samples have negative gradient in the direction of centrifugal force. These results show that the heavy Ag isotopes move in the direction of the centrifugal force and the light isotopes move in the counter direction keeping their charge balance in the specimen. Additionally, I will introduce the development of isotope separation process in liquid based on this result.