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2008 | 113 | 1 | 591-594
Article title

The Anchoring Energy of Liquid Crystal Molecules to Magnetic Particles in HAB-Based Ferronematics

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EN
Abstracts
EN
In this work we describe the magnetic Freedericksz transition in HAB-based (4, 4'-di-n-heptylazoxybenzene) ferronematics. The ferronematic samples were prepared with two different volume concentrations of magnetic particles φ_1 = 2×10^{-5} and φ_2 = 2×10^{-4}. The liquid crystal HAB is nematic at the temperatures from ≈53°C to 70°C and smectic A at the temperatures under 53°C. The anisotropy of dielectric permitivity of HAB liquid crystal is positive in nematic phase and negative in smectic A phase. The magnetic Fredericksz transition was studied in nematic phase at temperature 60°C.
Keywords
EN
Contributors
  • Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovakia
author
  • Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovakia
  • Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovakia
author
  • Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovakia
  • Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovakia
author
  • Research Institute for Solid State Physics and Optics, Hungarian Academy of Sciences, P.O. Box 49, 1525 Budapest, Hungary
  • Research Institute for Solid State Physics and Optics, Hungarian Academy of Sciences, P.O. Box 49, 1525 Budapest, Hungary
author
  • Research Institute for Solid State Physics and Optics, Hungarian Academy of Sciences, P.O. Box 49, 1525 Budapest, Hungary
  • Research Institute for Solid State Physics and Optics, Hungarian Academy of Sciences, P.O. Box 49, 1525 Budapest, Hungary
author
  • Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznań, Poland
References
  • 1. F. Brochard, P.G. de Gennes, J. Phys. (Paris) 31, 691 (1970)
  • 2. J. Rault, P.E. Cladis, J.P. Burger, Phys. Lett. A 32, 199 (1970)
  • 3. J. Liebert, A. Martinet, J.Phys.Lett. Vol. 40, 363 (1979)
  • 4. S.H. Chen, N.M. Amer, Phys.Rev.Lett. 51, 2298 (1983)
  • 5. S.K. Srivatsa, G.S. Ranganath, Phys. Rev. E. 60, 5639 (1999)
  • 6. C.Y. Matuo, A.M. Figueiredo Neto, Phys. Rev. E. 60, 1815 (1999)
  • 7. S.V. Burylov, Y.I. Raikher, J. Phys. Lett. A 149, 279 (1990)
Document Type
Publication order reference
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YADDA identifier
bwmeta1.element.bwnjournal-article-appv113n1144kz
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