Two-dimensional equilibrium surface roughness for dissociative dimer dynamics.
Equilibrium crystal surfaces, constrained to equilibrate by means of dissociative dimer deposition and evaporation, have anomalous global surface roughness. We generalize earlier results for one-dimensional interfaces to two dimensions. The global surface width scales with surface size L as W2 approximately equals ln[L/(ln L)(1/4)] instead of the conventional form W2 approximately equal to ln L. The surface roughening transition does not change in nature, but its location is subject to a large and slowly varying logarithmic finite-size-scaling shift.
Lee
Deok-Sun
DS
Department of Physics, University of Washington, Seattle, Washington 98195, USA.
den Nijs
Marcel
M