Sensitivity of 6CHBT Liquid Crystal Doped with Ferroelectric or Magnetic Particles to Electric and Magnetic Fields

• Authors: J. Majorošová , N. Tomašovičová , M. Timko , M. Koneracká , I. Studenyak , O. Kovalchuk , S. Kovalchuk , J. Jadżyn , P. Kopčanský
• Languages of publication: EN

Abstracts

EN

Introduction of ferroelectric or magnetic nanoparticles into nematic liquid crystal is a promising method for the improvement of the electro-optic or magneto-optic properties of different nematic liquid crystals by non-chemical way. This work is devoted to the study of composite systems of liquid crystal with spherical ferroelectric or magnetic particles with the aim to study their sensitivity to electric and magnetic fields. The nematic 4-(trans-4'-n-hexylcyclohexyl)-isothiocyanatobenzene (6CHBT) liquid crystal was doped with SbSI ferroelectric particles or with Fe_{3}O_{4} magnetic particles. The structural transitions in ferronematic samples were indicated by capacitance measurements in a capacitor made of ITO-coated glass electrodes in combined electric and magnetic fields. The obtained results showed the increase of the shift in critical voltage with increasing magnetic field in both kinds of samples.

Keywords

EN

75.50.Mm; 61.30.Gd; 64.70.Md

Discipline

• 61.30.Gd: Orientational order of liquid crystals; electric and magnetic field effects on order
• 75.50.Mm: Magnetic liquids

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 126
• Issue: 1
• Pages: 260-261

Dates

published

2014-07

Contributors

author

J. Majorošová

• Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovakia

author

N. Tomašovičová

• Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovakia

author

M. Timko

• Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovakia

author

M. Koneracká

• Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovakia

author

I. Studenyak

• Uzhorod National University 46 Pidhirna St., Uzhorod 88000, Ukraine

author

O. Kovalchuk

• Institute of Physics, National Academy of Science of Ukraine,46, prospect Nauky, 03028 Kyiv, Ukraine

author

S. Kovalchuk

• Taras Shevchenko National University of Kyiv 64, Volodymyrs'ka St., 01601 Kyiv, Ukraine

author

J. Jadżyn

• Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60179 Poznan, Poland

author

P. Kopčanský

• Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovakia

References

• [1] L. Quan, Liquid crystals beyond displays: chemistry, physics, and applications, John Wiley and Sons, Inc., New Jersey 2012
• [2] F. Li, O. Buchnev, C.I. Cheon, A. Glushchenko, V. Reshetnyak, Y. Reznikov, T.J. Sluckin, J.L. West,Phys. Rev. Lett. 97, 147801 (2006), doi: 10.1103/PhysRevLett.97.147801
• [3] P. Kopčanský, N. Tomašovičová, M. Koneracká, V. Závišová, M. Timko, A. Džarová, A. Šprincová, N. Éber, K. Fodor-Csorba, T. Tóth-Katona, A. Vajda, J. Jadżyn, Phys. Rev. E 78, 011702 (2008), doi: 10.1103/PhysRevE.78.011702
• [4] P. Kopčanský, N. Tomašovičová, M. Koneracká, M. Timko, V. Závišová, N. Éber, K. Fodor-Csorba, T. Tóth-Katona, A. Vajda, J. Jadżyn, E. Beaugnon, X. Chaud, J. Magn. Magn. Mater. 322, 3696 (2010), doi: 10.1016/j.jmmm.2010.07.028

Identifiers

DOI

10.12693/APhysPolA.126.260