Gravity-induced diffusion of isotope atoms in monoatomic solid Se

T. Mashimo, M. Ono, X. S. Huang, Y. Iguchi, S. Okayasu, K. Kobayashi, E. Nakamura

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

A strong gravitational field resulted in the gravity-induced diffusion (sedimentation) of isotope atoms in monoatomic solid Se. The layer crystalline morphology consisting of three zones of the fine-grained crystals, the long crystals and feather-shaped crystals grown parallel to gravity direction appeared in the specimen ultracentrifuged at (0.8-1)×106 G and at 190 °C. Change in the concentration ratio 82Se/ 76Se of >0.8% was observed in the grown crystalline region. These results show an evidence for the sedimentation of substitutional atoms in solids via self-diffusion, and suggest the possibility of application to the control of impurity and crystalline states as well as to isotope separation.

Original languageEnglish
Article number56002
JournalEPL
Volume81
Issue number5
DOIs
Publication statusPublished - Mar 1 2008

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Gravity-induced diffusion of isotope atoms in monoatomic solid Se'. Together they form a unique fingerprint.

  • Cite this