Comparison between theory and simulations for the magnetization and the susceptibility of polydisperse ferrofluids

I. Szalai, S. Nagy, S. Dietrich

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Abstract

The influence of polydispersity on the magnetization of ferrofluids is studied based on a previously published magnetization equation of state (Szalai and Dietrich, 2011 J. Phys.: Condens. Matter 23 326004) and computer simulations. The polydispersity of the particle diameter is described by the gamma distribution function. Canonical ensemble Monte Carlo simulations have been performed in order to test these theoretical results for the initial susceptibility and the magnetization. The results for the magnetic properties of the polydisperse systems turn out to be in quantitative agreement with our present simulation data. In addition, we find good agreement between our theory and experimental data for magnetite-based ferrofluids.

Original languageEnglish
Article number465108
JournalJournal of Physics Condensed Matter
Volume25
Issue number46
DOIs
Publication statusPublished - Nov 20 2013

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ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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