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snapshots of the shuffle core evolution at for different misfit conditions and different times . The extra plane is represented by the closed circles and the distance from the initial position (thin line) by the segment on the left. After the whole thermal cycle ( at ), the dislocation cores at 2%, 3%, and 4% misfits are found at the interface with the substrate.
Shuffle dislocation core (top panel) and glide dislocation core (bottom panel) as obtained for the 2% misfit case. The additional plane and the Burgers vector are indicated.
As in Fig. 1, for the glide set. At 1% misfit, the glide dislocation partializes, while for 2% and 3% (not shown) misfits, a perfect 60° glide core is observed. At high misfit (4%), a disordered structure is found. No migration is observed up to .
Magnified snapshot at of a partial glide dislocation.
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