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Figure 6
The strain in and around the InAs1–xPx region is shown for simulations with different shell arrangements, indicated in cuts through the wire, shown in (a), for a NW without shells (1) and for a NW with two different shell dimensions (2, 3); in (2) an inner-shell thickness of 1 nm and outer-shell thickness of 2.5 nm and in (3) an inner-shell thickness of 4 nm and outer-shell thickness of 4 nm. For a better visualization the core region and the shell region of the NW are plotted separately, as depicted in (a) with black and red boxes. (b) yy and zz in the core region, i.e. in the black boxes. (c) yy and zz in the shell region, i.e. in the red boxes. The given strain values are always relative to the according relaxed ZB and WZ, InAs and InAs1–xPx lattice parameters.

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