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(a) Schematic showing the arrangement of experimental setup. An isolated CNT forms a bridge between the tip of the tungsten needle and platinum/silicon substrate. (b) TEM image of an isolated DWNT bridge. (c) NBED pattern taken from the circled region in (b). (d) and (e) show a TEM image and corresponding diffraction pattern of the same area after deformation.
Chiral maps indicating modulation paths of chiral indices of a SWNT, DWNT, and TWNT in the plastic elongation process. The chiral indices of DWNT is also shown in Table I. In every CNTs, propagation of five to seven defects was suggested to take both dislocation directions with Burgers vectors and .
Chiral indices of the DWNT determined in the present experiment and structural parameters calculated from the indices.
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