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Plastic Deformations in Mechanically Strained Single-Walled Carbon Nanotubes

By D. Bozovic, M. Bockrath, J. H. Hafner, C. M. Lieber, H. Park and M. Tinkham


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

Topics: Condensed Matter - Mesoscale and Nanoscale Physics
Publisher: 'American Physical Society (APS)'
Year: 2002
DOI identifier: 10.1103/PhysRevB.67.033407
OAI identifier:

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