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|Title:||Pattern formation and transformation by self-epitaxial nucleation and growth|
A1. Pattern formation
|Citation:||Liu, X.-Y. (2002-04). Pattern formation and transformation by self-epitaxial nucleation and growth. Journal of Crystal Growth 237-239 (1-4 I) : 106-110. ScholarBank@NUS Repository. https://doi.org/10.1016/S0022-0248(01)01853-X|
|Abstract:||The self-epitaxial nucleation and growth origin of the formation and transformation of crystalline fractal pattern is identified for the first time. Two universal parameters, so-called relative elemental branching period 〈l̃〉 and the anisotropy or structural match parameter m, are introduced to describe the pattern transformation. These two parameters can be predicted according to our model. Fractal patterns arise when 〈l̃〉 ≤1. Fractal patterns having a strong anisotropy (m→ 1) at relatively low surface supersaturations, and a very weak anisotropy (m→ - 1) at high surface supersaturations. The results are in excellent agreement with the results of NH4Cl crystals grown from different mediums. © 2002 Published by Elsevier Science B.V.|
|Source Title:||Journal of Crystal Growth|
|Appears in Collections:||Staff Publications|
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