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Pendulum as a model system for driven rotation in molecular nanoscale machines

A. V. Zolotaryuk ; P. L. Christiansen ; Bengt Nordén (Institutionen för fysikalisk kemi) ; A. V. Savin ; Y. Zolotaryuk
Physical Review E (1063-651X). Vol. 61 (2000), 3, p. 3256-3259.
[Artikel, refereegranskad vetenskaplig]

We suggest a ratchet mechanism of rotatory (or translatory) motion of a Brownian rotator (or a particle) in a spatially symmetric periodic potential. The asymmetry that drives the ratchet motion is due to a special sequence of activation of catalytic sites arranged in space circularly and periodically. A pendulum driven by short impulses at its stable equilibrium point is shown to be a simple mechanical model which can be constructed easily and used for visual observation of the ratchet rotation. A possible application of this mechanism in nanotechnology is briefly discussed.



Denna post skapades 2011-06-21. Senast ändrad 2011-06-21.
CPL Pubid: 142114

 

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Institutioner (Chalmers)

Institutionen för fysikalisk kemi (1900-2003)

Ämnesområden

Fysik

Chalmers infrastruktur