Journal
Article title
Title variants
Languages of publication
Abstracts
The structural transitions in ferronematics based on the thermotropic nematic liquid crystal 4-cyano-4'-hexylbiphenyl were studied. The ferronematic samples were prepared by doping with magnetic suspension consisting of Fe_3O_4 particles (10 nm in diameter) coated with oleic acid as a surfactant with different volume concentrations of magnetic particles (from 10^{-5} to 10^{-3}). Freedericksz transitions were studied in combined electric and magnetic fields. The experimental results indicated soft anchoring with perpendicular initial orientation between the magnetic moment of the magnetic particles and director.
Discipline
- 61.30.Hn: Surface phenomena: alignment, anchoring, anchoring transitions, surface-induced layering, surface-induced ordering, wetting, prewetting transitions, and wetting transitions
- 61.30.Gd: Orientational order of liquid crystals; electric and magnetic field effects on order
- 75.50.Mm: Magnetic liquids
Journal
Year
Volume
Issue
Pages
336-338
Physical description
Dates
published
2009-01
Contributors
author
- Institute of Experimental Physics, Slovak Academy of Sciences, Watsonová 47, 04001 Košice, Slovakia
author
- Institute of Experimental Physics, Slovak Academy of Sciences, Watsonová 47, 04001 Košice, Slovakia
author
- Institute of Experimental Physics, Slovak Academy of Sciences, Watsonová 47, 04001 Košice, Slovakia
author
- Institute of Experimental Physics, Slovak Academy of Sciences, Watsonová 47, 04001 Košice, Slovakia
author
- Institute of Experimental Physics, Slovak Academy of Sciences, Watsonová 47, 04001 Košice, Slovakia
author
- Faculty of Aeronautics, Technical University, Rampová 7, 041 21 Košice, Slovakia
author
- Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland
References
- 1. F. Brochard, P.G. de Gennes, J. Phys. (Paris) 31, 691 (1970)
- 2. S.V. Burylov, Y.L. Raikher, J. Phys. Lett. A 149, 279 (1990)
- 3. S.V. Burylov, Y.L. Raikher, J. Magn. Magn. Mater. 122, 62 (1993)
- 4. S.V. Burylov, Y.L. Raikher, Mol. Cryst. Liq. Cryst. 255, 107 (1995)
- 5. J. Czub, S. Urban, A. Wurflinger, Liq. Cryst. 33, 85 (2006)
- 6. P. Kopčanský, M. Koneracká, M. Timko, I. Potočová, L. Tomčo, N. Tomašovičová, V. Závišová, J. Jadzyn, J. Magn. Magn. Mater. 300, 75 (2006)
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv115n1096kz