Hwang, Ing-ShouhMartinez, RLiu, ChienGolovchenko, Jene2016-11-171995Hwang, Ing-Shouh, R. E. Martinez, Chien Liu, and J. A. Golovchenko. 1995. Soft Incommensurate Reconstruction on Pb/Si(111): Structure, Stress Modulation, and Phase Transition. Physical Review B 51, no. 15: 10193–10196. doi:10.1103/physrevb.51.10193.0163-1829http://nrs.harvard.edu/urn-3:HUL.InstRepos:29406269We resolve the atomic structure of the one-monolayer incommensurate (IC) reconstruction of Pb on Si(111) using a tunneling microscope. The local structure of this surface consists of two types of Pb trimers and a quasi-1×1 region, while on larger (>10 Å) scales the trimers are assembled into alternating domains discommensurate with the substrate. One feature of this surface is the sensitivity of the domain morphology to surface-stress inhomogeneities. This sensitivity dramatically alters the temperature at which the IC phase transforms locally to a 1×1 phase.en-USJournal Article2016-11-1710.1103/PhysRevB.51.10193