2013/07/17 by I. Szalai, István Szalai, S. Nagy +5
Biochemistry, Genetics and Molecular Biology · Economics, Econometrics and Finance · Engineering · Physics and Astronomy · #Characterization and Applications of Magnetic Nanoparticles #Complex Systems and Time Series Analysis #FOS: Physical sciences #Geomagnetism and Paleomagnetism Studies #Soft Condensed Matter (cond-mat.soft) #cond-mat.soft
paper · pdf · doi:10.48550/arxiv.1307.4596
12 pages including 5 figures
arxiv created 2013/07/17 · openalex publication_date 2013/07/17 · arxiv updated 2013/07/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
On the basis of the mean spherical approximation of multicomponent dipolar hard sphere mixtures an analytical expression is proposed for the magnetic field dependence of the magnetization of size polydisperse ferrofluids. 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.