Phys. Rev. Lett. 101, 186808 (2008) [4 pages]Nanoscale Rotary Motors Driven by Electron TunnelingReceived 23 February 2008; published 31 October 2008 We examine by semiclassical molecular dynamics simulations the possibility of driving nanoscale rotary motors by electron tunneling. The model systems studied have a carbon nanotube shaft with covalently attached “isolating” molecular stalks ending with “conducting” blades. Periodic charging and discharging of the blades at two metallic electrodes maintains an electric dipole on the blades that is rotated by an external electric field. Our simulations demonstrate that these molecular motors can be efficient under load and in the presence of noise and defects. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.101.186808
DOI:
10.1103/PhysRevLett.101.186808
PACS:
85.65.+h, 45.40.−f, 84.50.+d, 85.35.Gv
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