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Selected Works of Duane D. Johnson
Article
Absolute TiN(111) Step Energies from Analysis of Anisotropic Island Shape Fluctuations
Physical Review Letters (2002)
  • S. Kodambaka, University of Illinois at Urbana-Champaign
  • V. Petrova, University of Illinois at Urbana-Champaign
  • S. V. Khare, University of Illinois at Urbana-Champaign
  • Duane D. Johnson, University of Illinois at Urbana-Champaign
  • I. Petrov, University of Illinois at Urbana-Champaign
  • J. E. Greene, University of Illinois at Urbana-Champaign
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Abstract
In situ high-temperature (1165–1248 K) scanning tunneling microscopy was used to measure fluctuations around the equilibrium shape of two-dimensional vacancy islands on TiN(111) terraces. From the equilibrium shape, the ratio of the two ⟨110⟩ step energies was found to be 0.72±0.02. Combining this with the results of an exact approach for analysis of shape fluctuations, applicable to highly anisotropic islands, we obtain absolute values for step energies and step stiffnesses as a function of orientation.
Disciplines
Publication Date
April 8, 2002
Publisher Statement
Copyright 2002 American Physical Society
Citation Information
S. Kodambaka, V. Petrova, S. V. Khare, Duane D. Johnson, et al.. "Absolute TiN(111) Step Energies from Analysis of Anisotropic Island Shape Fluctuations" Physical Review Letters Vol. 88 Iss. 14 (2002)
Available at: http://works.bepress.com/duane_johnson/55/