Tunneling Images of Atomic Steps on the Si(111)7×7 Surface

Phys. Rev. Lett. 55, 2028 – Published 4 November 1985
R. S. Becker, J. A. Golovchenko, E. G. McRae, and B. S. Swartzentruber

Abstract

Tunneling images of single atomic steps on Si(111) have been obtained with a tunneling microscope. The 7×7 reconstruction is observed to persist essentially undistorted right up to the steps. The position of each step coincides with a 7×7 unit-mesh edge in both the upper and lower terraces adjacent to it. Asymmetry within the 7×7 unit mesh is observed and correlated with faulting of terraces adjacent to the step. The results are described by an extension of the dimer adatom stacking-fault model of Takayanagi et al.

DOI: http://dx.doi.org/10.1103/PhysRevLett.55.2028

  • Received 11 July 1985
  • Published in the issue dated 4 November 1985

© 1985 The American Physical Society

Authors & Affiliations

R. S. Becker, J. A. Golovchenko, E. G. McRae, and B. S. Swartzentruber

  • AT&T Bell Laboratories, Murray Hill, New Jersey 07974

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