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Structuralization of magnetic nanoparticles in 5CB liquid crystals

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Abstract

This work is devoted to the study of highly stable composite systems of the liquid crystal 4-n-pentyl-4′-cyanobiphenyl (5CB) doped with CoFe2O4 magnetic nanoparticles. Ferronematic samples were prepared with two different weight concentrations: sample A 0.085 wt% and sample B 0.062 wt%. The interaction of CoFe2O4 nanoparticles with the liquid crystal was investigated by small-angle X-ray-scattering and magnetization measurements. The obtained results reveal aggregates formed by magnetic nanoparticles that are oriented in the nematic phase. Moreover, the prepared samples show unexpected behaviour of a sudden change in magnetization, which is unusual for such ferronematics.

Graphical abstract: Structuralization of magnetic nanoparticles in 5CB liquid crystals

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Publication details

The article was received on 22 Jun 2017, accepted on 25 Sep 2017 and first published on 26 Sep 2017


Article type: Paper
DOI: 10.1039/C7SM01234A
Citation: Soft Matter, 2017, Advance Article
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    Structuralization of magnetic nanoparticles in 5CB liquid crystals

    V. Gdovinová, M. A. Schroer, N. Tomašovičová, I. Appel, S. Behrens, J. Majorošová, J. Kováč, D. I. Svergun and P. Kopčanský, Soft Matter, 2017, Advance Article , DOI: 10.1039/C7SM01234A

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