(1) By using STM tip the individual atom can be moved atom by atom on the surface. Please check these videos, you can find what we can do !!
Demonstration of atom manipulation: Pb atoms on Pb(111), Movie
ATOM manipulation: Letter- "K" (Au atoms on Au(111)), Movie
(2) STM visualize how surface electrons scattered on the metallic surface
Scattering patterns and its energy dependence in real space (on Ag(111)), Movie
2D FFT of scattering pattern, Movie
(3) Artificial construction of "Magnetic atom chain" with individual Fe atom on Re(0001) new
Supplementary movie from the publication, Movie