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Atomic Observation of the Sublimation Process of the Pb(111) Surface

Author

Listed:
  • T. Tanigaki

    (Department of Nanophysics in Frontier Projects, Ritsumeikan University, Shiga 525-8577, Japan)

  • H. Suzuki

    (Department of Nanophysics in Frontier Projects, Ritsumeikan University, Shiga 525-8577, Japan)

  • Y. Kimura

    (Department of Nanophysics in Frontier Projects, Ritsumeikan University, Shiga 525-8577, Japan)

  • C. Kaito

    (Department of Nanophysics in Frontier Projects, Ritsumeikan University, Shiga 525-8577, Japan)

  • Y. Saito

    (Department of Electron and Information Science, Kyoto Institute of Technology, Kyoto 606-8585, Japan)

Abstract

The dynamic behavior of the sublimation process using ultrafine Pb particles produced by the gas evaporation technique was examined at the level of atomic resolution using a transmission electron microscope equipped with a real-time video-recording system. The ultrafine Pb particles coated with a carbon layer with a thickness of the order of 5 nm were prepared in the electron microscope by heating particles on carbon film at 300°C. Sublimation of the Pb particle covered with the carbon layer took place above 470°C, which is slightly higher than the melting point of Pb. Sublimation occurred at the surface with a higher surface energy. The sublimation process of the (111) surface was clearly observed at an atomic level. It was found that two- or four-atomic-layer step flow was observed at the (111) surface. At the (111) surface between the stacking faults, two-layer and successive one-layer sublimation occurred.

Suggested Citation

  • T. Tanigaki & H. Suzuki & Y. Kimura & C. Kaito & Y. Saito, 2003. "Atomic Observation of the Sublimation Process of the Pb(111) Surface," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 10(02n03), pages 455-459.
    • Handle: RePEc:wsi:srlxxx:v:10:y:2003:i:02n03:n:s0218625x03005220
    DOI: 10.1142/S0218625X03005220
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