DOI:10.5488/CMP.13.33701
Title:
Nano-colloids of Sn2P2S6 in Nematic Liquid Crystal Pentyl-cianobiphenile
Author(s):
| O. Kurochkin (Institute of Physics, National Academy of Sciences of Ukraine, 46 Nauky avenue, Kyiv 03028, Ukraine) , | |
| H. Atkuri (Liquid Crystal Institute, Kent State University, Kent, Ohio, 44242, USA) , | |
| O. Buchnev (Institute of Physics, National Academy of Sciences of Ukraine, 46 Nauky avenue, Kyiv 03028, Ukraine, Soton) , | |
| A. Glushchenko (University of Colorado at Colorado Springs, Department of Physics, Colorado Springs, CO 80918, USA) , | |
| O. Grabar (Institute of Solid State Physics and Chemistry, Uzhgorod State University, 46 Pidhirna Str., Uzhgorod 294000, Ukraine) , | |
| R. Karapinar (Faculty of Arts and Sciences Department of Physics, Yuzuncu Yil University, Van, 65080, Turkey) , | |
| V. Reshetnyak (National Taras Shevchenko University of Kyiv, Physics Faculty, Volodymyrs'ka Str. 64, Kyiv, 01601, Ukraine) , | |
| J. West (Liquid Crystal Institute, Kent State University, Kent, Ohio, 44242, USA) , | |
| Yu. Reznikov (Institute of Physics, National Academy of Sciences of Ukraine, 46 Nauky avenue, Kyiv 03028, Ukraine) |
It has been shown experimentally that the ferroelectric nano-particles, in common with other molecular additives, shift the clearing temperature, Tc, extending or reducing the two-phase coexistent region and changing the average order parameter of the single-component nematics. An increase of up to 11°C or a smaller decrease of as much as 3°C of Tc, and corresponding changes of the order parameter were observed. In all cases the order parameter of the colloid followed the universal temperature behaviour, which is a characteristic of LCs with molecular additives.
Key words:
liquid crystals, ferroelectric nanoparticles
PACS:
77.84.Nh, 42.70.Df, 78.15.+e, 47.57.J-, 77.84.Lf, 78.67.Sc
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