DIFFUSION AND DESORPTION IN WEAKLY INTERACTING ADSORBATE

Using a properly chosen master equation describing combined desorption and surface diffusion processes in interacting adsorbate layers, we a nalyze the coverage evolution and calculate the dynamical structure fa ctor for the adsorbate in the weak intra-adsorbate interaction limit. The connection with formerly analyzed desorption-diffusion processes i n noninteracting adsorbate is made. For a simplified one-dimensional m odel the analytically derived expression for the dynamical structure f actor permits discussion of its dependence on sign of the interactions and value of the desorption rate.