SELF-ASSEMBLY OF MAGNETIC NANOSTRUCTURES

Authors
TOMANEK D KIM SG JUND P BORRMANN P STAMERJOHANNS H HILF ER
Citation
D. Tomanek et al., SELF-ASSEMBLY OF MAGNETIC NANOSTRUCTURES, Zeitschrift fur Physik. D, Atoms, molecules and clusters, 40(1-4), 1997, pp. 539-541
Citations number
23
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Zeitschrift fur Physik. D, Atoms, molecules and clusters → ACNP
ISSN journal
01787683
Volume
40
Issue
1-4
Year of publication
1997
Pages
539 - 541
Database
ISI
SICI code
0178-7683(1997)40:1-4<539:SOMN>2.0.ZU;2-O
Abstract
We use Monte Carlo and quaternion molecular dynamics simulations to st udy the self-assembly of intriguing structures which form in colloidal suspensions of small magnetite particles. We show that the only stabl e isomers with few particles, a ring acid a chain, can be efficiently interconverted using a magnetizable tip. We propose to use the oscilla ting dipole field of the tip to locally anneal the aggregates to eithe r a ring in zero field or a chain in nonzero applied field.