Dynamic colloidal sorting on a magnetic bubble lattice

Tierno, Pietro; Soba, Alejandro; Johansen, Tom H.; Sagués, Francesc
November 2008
Applied Physics Letters;11/24/2008, Vol. 93 Issue 21, p214102
Academic Journal
We use a uniaxial garnet film with a magnetic bubble lattice to sort paramagnetic colloidal particles with different diameters, i.e., 1.0 and 2.8 μm. We apply an external magnetic field which precesses around an axis normal to the film with a frequency Ω=62.8 s−1 and intensity 3120 A/m


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