Self-ordered nanoporous lattice formed by chlorine atoms on Au(111)
A self-ordered nanoporous lattice formed by individual chlorine atoms on the Au(111) surface has been studied
with low-temperature scanning tunneling microscopy, low-energy electron diffraction, and density functional
theory calculations.We have found out that room-temperature adsorption of 0.09–0.30 monolayers of chlorine on
Au(111) followed by cooling below 110 K results in the spontaneous formation of a nanoporous quasihexagonal
structure with a periodicity of 25–38 °A depending on the initial chlorine coverage. The driving force of the
superstructure formation is attributed to the substrate-mediated elastic interaction.