Molecular Motor Constructed from a Double-Walled Carbon Nanotube Driven by Axially Varying Voltage

Details Molecular Motor Constructed from a Double-Walled Carbon Nanotube Driven by Axially Varying Voltage Molecular Motor Constructed from a Double-Walled Carbon Nanotube Driven by Axially Varying Voltage

2005-01-05

arxiv.org/abs/cond-mat/0501062v3

Phys. Rev. B 72, 033404 (2005)

Physics

Condensed Matter

Materials Science

11 pages + 3 figures

Scientific paper

10.1103/PhysRevB.72.033404

A new molecular motor is conceptually constructed from a double-walled carbon nanotube (DWNT) consisting of a long inner single-walled carbon nanotube (SWNT) and a short outer SWNT with different chirality. The interaction between inner and outer tubes is the sum of the Lennard-Jones potentials between carbon atoms in inner tube and those in outer one. Within the framework of Smoluchowski-Feynman ratchet, it is theoretically shown that this system in an isothermal bath will exhibit a unidirectional rotation in the presence of a varying axial electrical voltage.

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