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Initial stages of the epitaxial growth of CdTe and CdS film on
substrates cooled to the temperatures below 0°C are experimentally
investigated. Electron diffraction patterns corresponding to the early
stages of growth and photographs of the surface are presented. The
experimentally revealed features (island size 20-25 nm, a δ-function size
distribution of the islands, and a monotonic orientation process of the
islands) are explained in the framework of a phenomenological theory of
heterophase fluctuations and nucleation with the use of migration of
solitons initiated by the misfit dislocations of crystal lattices.
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