Journal
EUROPEAN PHYSICAL JOURNAL E
Volume 34, Issue 3, Pages -Publisher
SPRINGER
DOI: 10.1140/epje/i2011-11030-y
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Funding
- University of Latvia [ESS2009/86]
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In this paper we formulate a model of superparamagnetic filaments with internal dissipative torques due to the action of a rotating magnetic field. It is shown that spirals are formed at both ends of the filament due to the action of the internal torques. These spirals propagate to the center of the filament and collide, forming a compact cluster that rotates in accordance with the rotating magnetic field. These results are in agreement with recent experiments with chains of superparamagnetic beads in a rotating magnetic field.
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