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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 $$alpha$$ -AgI super ionic conductor samples. All centrifuged samples keep their stoichiometry. The isotope ratio of $$^{107}$$Ag / $$^{109}$$Ag on centrifuged samples have negative gradient in the direction of centrifugal force. These results show that the heavy $$^{109}$$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.

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