Magnetic Merry Go Round - Resonant Reshaping of Colloidal Clusters on a Current Carrying Wire
Soft Condensed Matter
2017-06-30 v1
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.
Keywords
Cite
@article{arxiv.1706.09573,
title = {Magnetic Merry Go Round - Resonant Reshaping of Colloidal Clusters on a Current Carrying Wire},
author = {Lydiane Becu and Marc Basler and Miodrag L. Kulić and Igor M. Kulić},
journal= {arXiv preprint arXiv:1706.09573},
year = {2017}
}
Comments
12 pages, 11 figures