Epitaxy and interface defects
Epitaxy and interface defects
Epitaxy and interface defects
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hsl 2007 – Structure of imperfect materials – <strong>Epitaxy</strong> <strong>and</strong> <strong>interface</strong> <strong>defects</strong><br />
Kinetics of layer growth<br />
Nucleation mechanism Surface morphology<br />
Homogeneous nucleation<br />
(high supersaturation, non-continuous growth)<br />
Heterogeneous nucleation at suitable <strong>defects</strong> – steps<br />
(low supersaturation, continuous growth)<br />
Bundling of steps, wavy surface<br />
(topologically unstable)<br />
Step of monoatomic height in equal<br />
distances (topologically stable)<br />
5
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