Giant transversal particle diffusion in a longitudinal magnetic ratchet.

  title={Giant transversal particle diffusion in a longitudinal magnetic ratchet.},
  author={Pietro Tierno and Peter Reimann and Tom H. Johansen and Francesc Sagu{\'e}s},
  journal={Physical review letters},
  volume={105 23},
We study the transversal motion of paramagnetic particles on a uniaxial garnet film, exhibiting a longitudinal ratchet effect in the presence of an oscillating magnetic field. Without the field, the thermal diffusion coefficient obtained by video microscopy is D(0) ≈ 3 × 10(-4)  μm2/s. With the field, the transversal diffusion exhibits a giant enhancement by almost four decades and a pronounced maximum as a function of the driving frequency. We explain the experimental findings with a… CONTINUE READING

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  • F. Jülicher, A. Ajdari, J. Prost
  • Mod. Phys. 69 1269 (1997); P. Hänggi and F…
  • 2002
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  • I. Golding, E. C. Cox
  • Rev. Lett. 96 098102 (2006); R. Metzler and J…
  • 2000

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