Pseudomorphic growth

Cu(100) top is shown [77], It implies that for both substrates, Au(100) and Ag(100), an (for atomic dimensions) incredibly large number of Cu layers has to be deposited, before the overlayer acquires bulk structure. This behavior is vastly different from that on Au(lll) and Ag(lll), where pseudomorphic growth is restricted to one and two layers, respectively. 

Pourbaix diagram 21 pseudomorphic growth 133 pulse plating 186,301... 

At low coverages, most metallic adsorbates form ordered overlayers with a (1 x 1) surface structure on metal substrates. This implies that the substrate acts as a template and has a significant influence on the growth mode of the deposited material. This effect is usually called epitaxial growth. A more restricted definition of epitaxial growth would include only those examples where the substrate imposes its own crystal structure, orientation, and lattice parameter on the adsorbed overlayer. (This restricted definition is also called pseudomorphic growth.)... 

Fig. 42. Fe-induced surface stress on W(IOO). The kink in the stress curve around 3 ML indicates the end of pseudomorphic growth. The initial compressive stress is of opposite sign than the calculated misfit stress. The slope of the data points from 1 to 3 ML corresponds to a tensile film stress of 9.7 GPa. Data from [99Gut] (1 ML 1.00x10 atoms / cm ).

Fig. 46. Anisotropic Fe-induced surface stress on W(llO). Stress components along [ 1 10], upper curve, and along [001], lower curve have been measured. The kink at 1.2 ML is ascribed to the formation of misfit distortions and indicates the end of pseudomorphic growth. The inset shows a blow-up of the small coverage range. Data from [99San2] (1 ML ...

Frank-van der Merwe growth mode (film formation) Layer-by-layer growth where there is strong interaction between the depositing atoms and the substrate. Complete coverage of the substrate is attained with a few monolayer film thickness. See also Volmer-Weber (island) growth Stranski-Krastanov (pseudomorphic) growth. 

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