Self-assembly and dynamics of magnetic holes

Arne T. Skjeltorp (1) , Jørgen Akselvoll (1) , Kai de Lange Kistiansen (2) , Geir Helgesen (1) , Renaud Toussaint (3, 2) , Eirik Grude Flekkøy (2) , Josef Cernak (4)

1 INSITUTE FOR ENERGY - Department of Physics
2 Department of Physics [Oslo]
3 GE
4 University of Kosice

Nonmagnetic particles in magnetized ferrofluids have been denoted magnetic holes and are in many ways ideal model systems to test various forms of particle self assembly and dynamics. Some case studies to be reviewed here include:

• Chaining of magnetic holes
• Braid theory and Zipf relation used in dynamics of magnetic microparticles
• Interactions of magnetic holes in ferrofluid layers

The objectives of these works have been to find simple characterizations of complex behavior of particles with dipolar interactions.

Domaines: Matière Molle [cond-mat.soft]; Mécanique statistique [cond-mat.stat-mech]; Systèmes désordonnés et réseaux de neurones [cond-mat.dis-nn]; Chimie-Physique [physics.chem-ph]

Arne T. Skjeltorp, Jørgen Akselvoll, Kai de Lange Kistiansen, Geir Helgesen, Renaud Toussaint, et al.. Self-assembly and dynamics of magnetic holes. Forces, growth and form in soft condensed matter: at the interface between physics and biology, 2004, Geilo, Norway. 15 p. ⟨hal-00110583⟩