منابع مشابه
Anisotropy Effects During Unstable Step Flow Growth
Acknowledgements First of all I would like to thank my supervisor Klaus Kassner for his overall support during the various stages of my Ph.D. studies. I am grateful for the pleasant working environment and many important learning opportunities. This work is the result of a fruitful collaboration with Laboratoire de Spec-trométrie Physique in Grenoble, where I spent numerous enjoyable research v...
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A theoretical study is presented of the effect of misfit strain on the transition from step flow to island nucleation dominated epitaxial layer growth on a vicinal surface. The analysis generalizes a set of reaction-diffusion equations used for homoepitaxy to include the fact that heteroepitaxial strain changes the Arrhenius barrier for diffusion and promotes the detachment of atoms from the ed...
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– Two mechanisms for the breakdown of step flow growth, in the sense of the appearance of steps of opposite sign to the original vicinality, are studied by kinetic Monte Carlo simulations and scaling arguments. The first mechanism is the nucleation of islands on the terraces, which leads to mound formation if interlayer transport is sufficiently inhibited. The second mechanism is the formation ...
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A general expression for the critical terrace width for step flow growth accounting for both the step permeability and the asymmetric incorporation of atoms to ascending and descending steps is derived. It covers both cases of diffusion and attachment-detachment limited regimes of growth at high and low temperatures. It is found that when at least one of the excess step-edge barriers is equal t...
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ژورنال
عنوان ژورنال: Crystal Growth & Design
سال: 2016
ISSN: 1528-7483,1528-7505
DOI: 10.1021/acs.cgd.6b01147