Smallest Archimedean Screw: Facet Dynamics and Friction
in Multiwalled Nanotubes
Version 2 2018-08-10, 08:29
Version 1 2017-08-28, 11:22
Posted on 2018-08-10 - 08:29
We
identify a new material phenomenon, where minute mechanical
manipulations induce pronounced global structural reconfigurations
in faceted multiwalled nanotubes. This behavior has strong implications
on the tribological properties of these systems and may be the key
to understand the enhanced interwall friction recently measured for
boron-nitride nanotubes with respect to their carbon counterparts.
Notably, the fast rotation of helical facets in these systems upon
coaxial sliding may serve as a nanoscale Archimedean screw for directional
transport of physisorbed molecules.
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Guerra, Roberto; Leven, Itai; Vanossi, Andrea; Hod, Oded; Tosatti, Erio (2017). Smallest Archimedean Screw: Facet Dynamics and Friction
in Multiwalled Nanotubes. ACS Publications. Collection. https://doi.org/10.1021/acs.nanolett.7b01718
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AUTHORS (5)
RG
Roberto Guerra
IL
Itai Leven
AV
Andrea Vanossi
OH
Oded Hod
ET
Erio Tosatti
KEYWORDS
physisorbed moleculestribological propertieshelical facetsinterwall frictionSmallest Archimedean ScrewFacet DynamicsMultiwalled Nanotubesfaceted multiwalled nanotubesmanipulationreconfigurationrotationimplicationnanoscale Archimedean screwcarbon counterpartsmaterial phenomenonboron-nitride nanotubes