Effect of dimerization on the field-induced birefringence in ferrofluids

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Szczytko, J. and Vaupotic, Natasa and Osipov, Mikhail and Madrak, K. and Gorecka, E. (2013) Effect of dimerization on the field-induced birefringence in ferrofluids. Physical Review E, 87. 062322. ISSN 2470-0053 (https://doi.org/10.1103/PhysRevE.87.062322)

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Abstract

The magnetic-field-induced birefringence in a ferrofluid composed of spherical cobalt nanoparticles has been studied both experimentally and theoretically. The considerable induced birefringence determined experimentally has been attributed to the formation of chains of nanoparticles. The birefringence has been measured as a function of the external magnetic field and the volume fraction (f) of nanoparticles. It is quadratic in f as opposed to the Faraday effect, which is linear in f. Experimental results agree well with the theoretical model based on a simple density functional approach. For dilute solutions the experimental results can be explained by assuming that only dimers of nanoparticles are formed while the concentration of longer chains is negligible.

ORCID iDs

Szczytko, J., Vaupotic, Natasa, Osipov, Mikhail ORCID logoORCID: https://orcid.org/0000-0002-1836-1854, Madrak, K. and Gorecka, E.;
  • Item type:Article
    ID code:47176
    Dates:
    Date
    Event
    2013
    Published
    28 June 2013
    Published Online
    Subjects:Science > Physics
    Department:Faculty of Science > Mathematics and Statistics
    Depositing user: Pure Administrator
    Date deposited:12 Mar 2014 11:09
    Last modified:11 Nov 2024 10:38
    URI:https://strathprints.strath.ac.uk/id/eprint/47176
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