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Figure 7
Odd feature in an Si NW in the [011] zone axis. (a) HRTEM and (b) power spectrum. The superstructure-like pattern follows the [21[\overline 1]] growth direction of the NW. A periodicity of 3d(111) is clearly visible in both the image and the power spectrum. It is shown in §5.2[link] that such a pattern is, in fact, a Moiré effect produced by overlapping twins.

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