Abstract
The effect exerted by diffusion upon the kinetics and morphological stability of zinc single crystals during growth from vapour phase in the presence of argon is studied. The shift of the basal face in normal direction and the growth of the edge of the same face as a function of time is checked at constant temperature and constant supersaturation at high vacuum or argon pressure 666-33330 Pa. Linear and parabolic dependences of the crystal sizeR as a function of the timet, respectively of the length of the basal edgea as a function of the time as well as the kinetic critical sizeR k , respectivelya k are established. In agreement with the isotropic theory of Chernov and Cahn, zinc single crystals with sizesR smaller thanR k grow in a kinetic regime, while those with sizesR larger thanR k grow in a diffusion regime. It is shown that the results of the kinetic investigations are in good agreement with data obtained by morphological studies.
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Iwanov, D. The kinetics of growth and the morphological instability of zinc single crystals. Acta Physica Hungarica 65, 11–17 (1989). https://doi.org/10.1007/BF03054113
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DOI: https://doi.org/10.1007/BF03054113