Mashimo, Tsutomu et al. (2007) Sedimentation of isotope atomes in monatomic liquid Se, Applied Physics Letters, 91, 231917, doi: 10.1063/1.2819070. < 20100403101828580.admin > pub
  • abstract:

    A strong gravitational field resulted in the sedimentation of isotope atoms in monatomic liquid. The concentration ratio 82Se/76Se increased by greater than 3.5% in specimen ultracentrifuged at (0.7–0.9)×106G and at 300°C. The recovered sample had a feather-shaped crystalline morphology. The concentration gradient was nearly twice that of the steady state analytical result (ideal gas system), indicating a nonideal system diffusion. The present result is evidence of sedimentation of substitutional atoms in condensed matter via self-diffusion and suggestes its possible application to isotope separation, crystalline control, and matter dynamics in massive star.

  • doi: 10.1063/1.2819070
  • modified at 2020-04-15
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  • name
  • Mashimo, Tsutomu
  • Ono, Masao
  • Huang, Xinsheng
  • Iguchi, Yusuke
  • Okayasu, Satoru
  • Kobayashi, Katsura
  • Nakamura, Eizo