Percolation and orientational ordering in systems of magnetic nanorods

Carlos E. Alvarez, Sabine H.L. Klapp

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22 Scopus citations

Abstract

Based on Monte Carlo (MC) computer simulations we study the structure formation of a system of magnetic nanorods. Our model particles consist of fused spheres with permanent magnetic dipole moments, as inspired by recent experiments. The resulting system behaves significantly different from that of a system of hard (non-magnetic) rods or magnetic rods with a single longitudinal dipole. In particular, we observe for the magnetic nanorods a significant decrease of the percolation threshold (as compared to non-magnetic rods) at low densities, and a stabilization of the high-density nematic phase. Moreover, the percolation threshold is tunable by an external magnetic field.

Original languageEnglish (US)
Pages (from-to)7480-7489
Number of pages10
JournalSoft Matter
Volume8
Issue number28
DOIs
StatePublished - Jul 28 2012
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics

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