Becker, R. S.Golovchenko, JeneMcRae, E. G.Swartzentruber, B. S.2016-11-181985Becker, R. S., J. A. Golovchenko, E. G. McRae, and B. S. Swartzentruber. 1985. Tunneling Images of Atomic Steps on the Si(111)7×7 Surface. Physical Review Letters 55, no. 19: 2028-2035. doi:10.1103/physrevlett.55.2028.0031-9007http://nrs.harvard.edu/urn-3:HUL.InstRepos:29407044Tunneling 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.en-USJournal Article2016-11-1810.1103/PhysRevLett.55.2028