Atomic observation of the sublimation process of the Pb (111) surface

T. Tanigaki, H. Suzuki, Y. Kimura, C. Kaito, Y. Saito

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)455-459
Number of pages5
JournalSurface Review and Letters
Volume10
Issue number2-3
DOIs
Publication statusPublished - 2003 Jan 1

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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