Plastic Deformations in Mechanically Strained Single-Walled Carbon Nanotubes

Details Plastic Deformations in Mechanically Strained Single-Walled Carbon Nanotubes Plastic Deformations in Mechanically Strained Single-Walled Carbon Nanotubes

2002-10-18

arxiv.org/abs/cond-mat/0210420v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevB.67.033407

AFM manipulation was used to controllably stretch individual metallic single-walled carbon nanotubes (SWNTs). We have found that SWNTs can sustain elongations as great as 30% without breaking. Scanned gate microscopy and transport measurements were used to probe the effects of the mechanical strain on the SWNT electronic properties, which revealed a strain-induced increase in intra-tube electronic scattering above a threshold strain of ~5-10%. These findings are consistent with theoretical calculations predicting the onset of plastic deformation and defect formation in carbon nanotubes.

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