The effects of lamellar twinning in epitaxial particle-assisted nanowires are investigated in an extensive high resolution electron microscopy (HRTEM) study of the low index zones , , and . As these directions are non-parallel to the ( ) twin planes we find that the twin segments exhibit two different zone axes as a consequence of twinning. In the first three cases the alternative zones were found to be , and . These findings are supported by a comparison of experimental HRTEM images and multi-slice simulations along with fast Fourier transform mapping. From the appearance of non-overlapping regions we conclude that the nanowires are bound by {111} facets only. The twin formation and the development of the stable side facets are discussed.
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Karlsson et al. (2007) studied this question.
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