Abstract

The Stranski-Krastanov growth of AgBr on NaCl cleavage faces has been studied by means of the surface decoration method. The existence of an intermediate monolayer, formed by nucleation and coalescence of two-dimensional (2D) islands and by step-flow mechanism, has been revealed by the gold decoration technique. The transition from 2D growth to 3D growth of AgBr is observed at a coverage above one monolayer of AgBr. The 3D islands are epitaxially grown on top of the intermediate layer and are aligned with respect to the NaCl substrate with the epitaxial relationship [100](001)AgBr‖[100](001)NaCl.

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