A Monte Carlo study of surface diffusion coefficients in the presence of adsorbate-adsorbate interactions. III: Repulsive nearest-neighbor and attractive next-nearest-neighbor interactions

Tracer, jump, and chemical diffusion coefficients D*, Dj, and D, respectively, were determined on a 50×50 square array of fixed sites by the fluctuation and Kubo–Green methods for the case of nearest-neighbor repulsions and numerically equal next-nearest-neighbor attractions. Both methods give the same D values except at θ=0.5 and T/Tc