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Epitaxy and interface defects

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2.3 Formation of misfit dislocations<br />

Pseudomorphic layer<br />

Misfit stress<br />

Thermally unstable against<br />

plastic/diffusive relaxation<br />

hsl 2007 – Structure of imperfect materials – <strong>Epitaxy</strong> <strong>and</strong> <strong>interface</strong> <strong>defects</strong><br />

Relaxed layer<br />

Almost no elastic stress<br />

Rather stable<br />

Presence of lattice <strong>defects</strong><br />

affects processing<br />

Recombination activity<br />

of <strong>defects</strong><br />

14

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