The Influence of Magnetic Particles on the Nematic Droplets Formation in Liquid Crystal
J. Majorošováa, V. Gdovinová a, N. Tomašovičová a, A. Juríková a, V. Závišová a, J. Jadzyn b and P. Kopčanský a
aInstitute of Experimental Physics SAS, Watsonova 47, 040 01 Košice, Slovakia
bInstitute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland
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In this work the thermotropic nematic liquid crystal 4-trans-4'-n-hexyl-cyclohexyl-isothiocyanato-benzene (6CHBT) was dissolved in phenyl-isothiocyanate and doped with spherical magnetic particles with volume concentration ϕ1=10-4 and ϕ2=10-3. The influence of the volume concentration on the phase transitions from isotropic to nematic phase was studied by three experimental methods: optical microscopy, differential scanning calorimetry, and dielectric measurements. The obtained results confirmed the coexistence of isotropic and nematic phase, i.e. nematic or ferronematic droplets in isotropic phase in a wide temperature range between nematic and isotropic phase.

DOI: 10.12693/APhysPolA.131.955
PACS numbers: 75.50.Mm, 61.30.Gd, 67.30.Hm