Sedimentation of isotope atoms in monatomic liquid Se

Tsutomu Mashimo; Masao Ono; Xinsheng Huang; Yusuke Iguchi; Satoru Okayasu; Katsura Kobayashi; Eizo Nakamura

doi:10.1063/1.2819070

Sedimentation of isotope atoms in monatomic liquid Se

Tsutomu Mashimo, Masao Ono, Xinsheng Huang, Yusuke Iguchi, Satoru Okayasu, Katsura Kobayashi, Eizo Nakamura

Institute for Planetary Materials

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

A strong gravitational field resulted in the sedimentation of isotope atoms in monatomic liquid. The concentration ratio Se82 Se76 increased by greater than 3.5% in specimen ultracentrifuged at (0.7-0.9) × 106 G 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.

Original language	English
Article number	231917
Journal	Applied Physics Letters
Volume	91
Issue number	23
DOIs	https://doi.org/10.1063/1.2819070
Publication status	Published - 2007

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Sedimentation of isotope atoms in monatomic liquid Se",

abstract = "A strong gravitational field resulted in the sedimentation of isotope atoms in monatomic liquid. The concentration ratio Se82 Se76 increased by greater than 3.5% in specimen ultracentrifuged at (0.7-0.9) × 106 G 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.",

author = "Tsutomu Mashimo and Masao Ono and Xinsheng Huang and Yusuke Iguchi and Satoru Okayasu and Katsura Kobayashi and Eizo Nakamura",

note = "Funding Information: Experiments performed at Kumamoto University and Okayama University at Misasa were supported by the Center of Excellence Program for the 21st Century in Japan and by the Grant-in-Aid for Scientific Research of the Japanese Society for the Promotion of Science. ",

year = "2007",

doi = "10.1063/1.2819070",

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journal = "Applied Physics Letters",

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T1 - Sedimentation of isotope atoms in monatomic liquid Se

AU - Mashimo, Tsutomu

AU - Ono, Masao

AU - Huang, Xinsheng

AU - Iguchi, Yusuke

AU - Okayasu, Satoru

AU - Kobayashi, Katsura

AU - Nakamura, Eizo

N1 - Funding Information: Experiments performed at Kumamoto University and Okayama University at Misasa were supported by the Center of Excellence Program for the 21st Century in Japan and by the Grant-in-Aid for Scientific Research of the Japanese Society for the Promotion of Science.

PY - 2007

Y1 - 2007

N2 - A strong gravitational field resulted in the sedimentation of isotope atoms in monatomic liquid. The concentration ratio Se82 Se76 increased by greater than 3.5% in specimen ultracentrifuged at (0.7-0.9) × 106 G 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.

AB - A strong gravitational field resulted in the sedimentation of isotope atoms in monatomic liquid. The concentration ratio Se82 Se76 increased by greater than 3.5% in specimen ultracentrifuged at (0.7-0.9) × 106 G 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.

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Sedimentation of isotope atoms in monatomic liquid Se

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