Effect of Spherical, Rod-Like and Chain-Like Magnetic Nanoparticles on Magneto-Optical Response of Nematics |
| P. Burya, M. Veveričíka, P. Kopčanskýb, M. Timkob, V. Závišováb
aDepartment of Physics, Žilina University, Univerzitná 1, 010 26 Žilina, Slovakia bInstitute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovakia |
| Received: July 31, 2018; revised version March 29, 2019; in final form July 16, 2019 |
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| The effect of magnetic nanoparticles of low concentrations and different shapes, including spherical, rod-like, and chain-like shape on the magneto-optical response of nematic liquid crystal 6CHBT is investigated. The magneto-optical effect was examined using a linearly polarized laser beam (532 nm) passed through liquid crystal cell under both linearly increasing and pulsed magnetic fields. The analysis of observed magneto-optical characteristics and magneto-optical time responses confirmed the role of both concentration and shape of magnetic particles on the resultant magneto-optical behavior concerning both its stability and switching time. |
DOI:10.12693/APhysPolA.136.101 topics: liquid crystal, magnetic particles, ferronematics, magneto-optical response |