Direct determination of the step-edge formation energies of the energetically stable and unstable double-layer step edges of Si(001)

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Abstract

Scanning tunneling microscopy images of 4.5° misoriented double B stepped Si(001) have been analyzed to determine the double-layer step-edge formation energies of the energetically stable double step (B-type) as well as the energetically unstable double step (A-type). The ordering of the various single- and double-layer step-edge formation energies is in accordance with semiempirical tight-binding-based total-energy calculations performed by Chadi [Phys. Rev. Lett. 59, 1691 (1987)]. Finally, the miscut angle at which the transition between the single- and double-layer stepped surface occurs as calculated using the experimentally obtained step-edge formation energies is in agreement with the experiments
Original languageUndefined
Pages (from-to)15429-15431
Number of pages3
JournalPhysical Review B (Condensed Matter)
Volume53
Issue number53
DOIs
Publication statusPublished - 1996

Keywords

  • METIS-128920
  • IR-73157

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