Surface Spikes: A Perturbation of Growth Steps
- 1 June 1966
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 37 (7) , 2607-2614
- https://doi.org/10.1063/1.1782093
Abstract
During the growth of NiBr2 crystals by sublimation, it has been observed that in addition to the mechanism of growth spirals a secondary mode of nucleation can occur. This is an accelerated growth which appears in the form of surface spikes on growth steps. The surface spikes may move as much as 50 times faster than the unperturbed growth steps. The mechanism of formation is believed to begin with the nucleation of a liquid droplet which wets the growth step and produces the accelerated growth from the liquid phase. The growth occurs at 500°C below the melting point of NiBr2. It is believed that the nucleation of the liquid phase at these temperatures is impurity controlled.This publication has 6 references indexed in Scilit:
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- VAPOR-LIQUID-SOLID MECHANISM OF SINGLE CRYSTAL GROWTHApplied Physics Letters, 1964
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