Structure of Si(100)-(2 x 1) surface using UHV transmission electron diffraction.
Details of the atomic structure for the Si(100)-(2×1) surface using UHV transmission electron diffraction are described. Reliability factor minimizations of the dynamical diffraction intensities establish conclusively the asymmetry in the structure. Fits performed using multilayer subsurface relaxations to match analytical strain solutions demonstrate the existence of long range subsurface strain fields extending up to six layers into the bulk