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Specimen operation process. (a)–(d) are schematic diagrams of the operation processes. (a) Selecting and approaching an individual SiC NW. (b) Contacting and welding this NW. (c) Pulling the individual NW out. (d) Moving to an appropriate position, welding and fixing.
Images of the tensile SiC NWs and the corresponding I-V curves. (a)–(f) images of the tensile SiC NW, (g)–(h) images of the fractured NW. (i) the corresponding I-V curves.
The current improvement rate versus the strain.
Current responses under the applied stress with the time. Two stress-induced steps were performed by increasing the stress by controlling the movement of one electrode (W tip) that was fixed to the SiC NW with another electrode (Ag).
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