The large-strain plasticity (LSP) of single-crystalline silicon nanowires (Si NWs) observed in situ at room temperature by axial tension experiments carried out in an ultrahigh-resolution electron microscope is reported. The LSP is demonstrated to result in a fourfold reduction in NW diameter before fracture (see figure), which is three orders of magnitude higher than that of bulk Si.
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Han et al. (2007) studied this question.
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