Dynamics of magnetic assembly of binary colloidal structures
Metadata
Show full item recordEditorial
Institute of Physics (IOP)
Materia
Dynamics of magnetic nanoparticles Self-assembly Colloids
Date
2015-08-24Referencia bibliográfica
Nogueras-Lara, F.; Rodríguez-Arco, L.; López-López, M.T. Dynamics of magnetic assembly of binary colloidal structures. Europhysics Letters, 111(3): 37002 (2015). [http://hdl.handle.net/10481/37848]
Sponsorship
The project MINECO FIS2013-41821-R (Spain) is acknowledged for financial support.Abstract
Magnetic field (MF)-directed assembly of colloidal particles provides a step towards
the bottom-up manufacturing of smart materials whose properties can be precisely modulated by
non-contact forces. Here, we study the MF-directed assembly in binary colloids made up of strong
ferromagnetic and diamagnetic microparticles dispersed in ferrofluids. We present observations
of the aggregation of pairs and small groups of particles to build equilibrium assemblies. We
also develop a theoretical model capable of solving the aggregation dynamics and predicting the
particle trajectories, a key factor to understand the physics governing the MF-directed assembly.