Sputter-erosion dynamics of Ni(1 1 0) surface

S. J. Kahng, B. Y. Choi, Y. Kuk

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We have studied the morphological evolution of Ni(1 1 0) surface induced by low-energy ion sputtering at room temperature with scanning tunneling microscopy. We found that there are two different time regimes in the sputtering processes. In the first regime, a ripple structure is formed with the wave vector along the direction [1 1̄ 0] due to the strong diffusion bias along the direction and the surface roughness increases fast with time. However, in the second regime, three-dimensional mounds are formed with absent anisotropy and the logarithmic surface roughness becomes saturated.

Original languageEnglish
Pages (from-to)76-79
Number of pages4
JournalApplied Surface Science
Issue number1-2
Publication statusPublished - 2001 Nov 12
Externally publishedYes


  • Ion sputtering
  • Scanning tunneling microscopy
  • Sputter-erosion

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films


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