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Tunable structures of mixtures of magnetic particles in liquid-crystalline matrices
- Publication Year :
- 2015
-
Abstract
- We investigate the self-organization of a binary mixture of similar sized rods and dipolar soft spheres by means of Monte-Carlo simulations. We model the interparticle interactions by employing anisotropic Gay-Berne, dipolar and soft-sphere interactions. In the limit of vanishing magnetic moments we obtain a variety of fully miscible liquid crystalline phases including nematic, smectic and lamellar phases. For the magnetic mixture, we find that the liquid crystalline matrix supports the formation of orientationally ordered ferromagnetic chains. Depending on the relative size of the species the chains align parallel or perpendicular to the director of the rods forming uniaxial or biaxial nematic, smectic and lamellar phases. As an exemplary external perturbation we apply a homogeneous magnetic field causing uniaxial or biaxial ordering to an otherwise isotropic state.<br />11 pages, 12 figures
- Subjects :
- Materials science
Condensed matter physics
Magnetic moment
Biaxial nematic
FOS: Physical sciences
General Chemistry
Condensed Matter - Soft Condensed Matter
Condensed Matter Physics
Condensed Matter::Soft Condensed Matter
Dipole
Condensed Matter::Materials Science
Ferromagnetism
Liquid crystal
Soft Condensed Matter (cond-mat.soft)
Magnetic nanoparticles
ddc:530
Lamellar structure
Anisotropy
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....95e93867431c7e4889a1331ec49b68e0