Giant Transversal Particle Diffusion in a Longitudinal Magnetic Ratchet

Tierno P, Reimann P, Johansen TH, Sagues F (2010)
Physical Review Letters 105(23): 230602.

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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 approximate to 3 x 10(-4) mu m(2)/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 theoretical interpretation in terms of random disorder effects within the magnetic film.
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Tierno P, Reimann P, Johansen TH, Sagues F. Giant Transversal Particle Diffusion in a Longitudinal Magnetic Ratchet. Physical Review Letters. 2010;105(23): 230602.
Tierno, P., Reimann, P., Johansen, T. H., & Sagues, F. (2010). Giant Transversal Particle Diffusion in a Longitudinal Magnetic Ratchet. Physical Review Letters, 105(23), 230602. doi:10.1103/PhysRevLett.105.230602
Tierno, P., Reimann, P., Johansen, T. H., and Sagues, F. (2010). Giant Transversal Particle Diffusion in a Longitudinal Magnetic Ratchet. Physical Review Letters 105:230602.
Tierno, P., et al., 2010. Giant Transversal Particle Diffusion in a Longitudinal Magnetic Ratchet. Physical Review Letters, 105(23): 230602.
P. Tierno, et al., “Giant Transversal Particle Diffusion in a Longitudinal Magnetic Ratchet”, Physical Review Letters, vol. 105, 2010, : 230602.
Tierno, P., Reimann, P., Johansen, T.H., Sagues, F.: Giant Transversal Particle Diffusion in a Longitudinal Magnetic Ratchet. Physical Review Letters. 105, : 230602 (2010).
Tierno, Pietro, Reimann, Peter, Johansen, Tom H., and Sagues, Francesc. “Giant Transversal Particle Diffusion in a Longitudinal Magnetic Ratchet”. Physical Review Letters 105.23 (2010): 230602.
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