Carbon nanotubes might provide the perfect bearings for nanometre-scale devices, Philip Ball reports.
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References
Kolmogorov, A.N. & Crespi, V.H. Smoothest bearings: interlayer sliding in multiwalled carbon nanotubes. Physical Review Letters 85, 4727 - 4730 2000.
Yu, M.-F., Yakobson, B.I. & Ruoff, R.S. Controlled sliding and pullout of nested shells in individual multiwalled carbon nanotubes. Journal of Physical Chemistry B 104, 8764 - 8767 2000.
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Ball, P. Friction-free tubes. Nature (2000). https://doi.org/10.1038/news001207-3
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DOI: https://doi.org/10.1038/news001207-3