Dielectric relaxation of chained ferrofluids

V V Murashov, P J Camp, G N Patey

Research output: Contribution to journalArticlepeer-review

Abstract

Molecular and Brownian dynamics simulations are used to investigate the frequency-dependent dielectric relaxation of ferrofluids, with the objective of identifying features characteristic of dipolar chain formation at low densities. It is shown that the presence of chains gives rise to a high frequency band associated with the vibrational motion of dipoles within the chains. This band serves as a "signature" of association and is not present in dipolar fluids at higher, liquid-like densities. A simple theory that traps the basic features of the relaxation behavior is also presented. (C) 2002 American Institute of Physics.

Original languageEnglish
Pages (from-to)6731-6737
Number of pages7
JournalThe Journal of Chemical Physics
Volume116
Issue number15
DOIs
Publication statusPublished - 15 Apr 2002

Keywords

  • PHASE
  • SCATTERING
  • SIMULATION
  • SPHERES
  • FLUIDS

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