Self-assembly of magnetic nanostructures

David Tomanek
Seong Gon Kim
Philippe Jund
Peter Borrmann   Phone: +49-441-798-3362   Fax: +49-441-798-3201
Heinrich Stamerjohanns   Phone: +49-441-798-3467   Fax: +49-441-798-3201
Eberhard R. Hilf   Phone: +49-441-798-2543   Fax: +49-441-798-3201


Date: 19961023

Article: published in Zeitschrift für Physik D Atoms, Molecules and Clusters: Volume 40 Issue 1-4 (1997) pp 539-541

PACS96: 75.50.Mm Magnetic liquids

We use Monte Carlo and quaternion molecular dynamics
simulations to study the self-assembly of intriguing 
structures which form in colloidal suspensions of small
magnetite particles. We show that the only stable isomers
with few particles, a ring and a chain, can be 
efficiently interconverted using a magnetizable tip. We 
propose to use the oscillating dipole field of the tip 
to locally anneal the aggregates to either a ring in zero
field or a chain in nonzero applied field. 

DC-Metatags done by WUFI 1.1
Metadata by Thomas Severiens on 19 November 1998
Supporting work done by Sandra Valeska Bergmann.