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arXiv · 1401.1695

Increasing the magnetic sensitivity of liquid crystals by rod-like magnetic nanoparticles

P. Kopčanský·N. Tomašovičová·T. Tóth-Katona·N. Éber·M. Timko·V. Závišová·J. Majorošová·M. Rajňak·J. Jadzyn·X. Chaud
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Abstract

Magnetic Fréedericksz transition was studied in ferronematics based on the nematic liquid crystal 4-(trans-4'-n-hexylcyclohexyl)-isothiocyanatobenzene (6CHBT). 6CHBT was doped with rod-like magnetic particles of different size and volume concentration. The volume concentrations of magnetic particles in the prepared ferronematics were $ϕ_1$ = 10$^{-4}$ and $ϕ_2$ = 10$^{-3}$. The structural changes were observed by capacitance measurements that demonstrate a significant influence of the concentration, the shape anisotropy, and/or the size of the magnetic particles on the magnetic response of these ferronematics.

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P. Kopčanský, N. Tomašovičová, T. Tóth-Katona, N. Éber, M. Timko, V. Závišová, J. Majorošová, M. Rajňak, J. Jadzyn, X. Chaud. 2014-01-08. Increasing the magnetic sensitivity of liquid crystals by rod-like magnetic nanoparticles. https://arxiv.org/abs/1401.1695

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