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arXiv · 1706.09573

Magnetic Merry Go Round - Resonant Reshaping of Colloidal Clusters on a Current Carrying Wire

Lydiane Becu·Marc Basler·Miodrag L. Kulić·Igor M. Kulić
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Abstract

We describe a simple physical method for trapping and transforming magnetic colloid clusters on a current carrying wire. We use the wire's field as a mould to form colloidal rings and helices on its surface. To transform the initially amorphous, kinetically trapped, bulky clusters we induce a low frequency magnetic modulation wave that spins around the wire axis, effectively eliminates defects from the clusters and stretches them into slender rings and helical structures. A qualitative theoretical model of the underlying resonant transformations is developed and the practical potential of the wire as a magnetic micro-assembler is discussed.

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Lydiane Becu, Marc Basler, Miodrag L. Kulić, Igor M. Kulić. 2017-06-29. Magnetic Merry Go Round - Resonant Reshaping of Colloidal Clusters on a Current Carrying Wire. https://arxiv.org/abs/1706.09573

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