| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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The Phase Transition of Nematic Liquid Crystal Cells Bounded by Surfactant-Laden Interfaces |
| ZENG Ming-Ying1,2, CUI Wei1, TAN Xiao-Qin1, WU Chen-Xu1**
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1Department of Physics and ITPA, Xiamen University, Xiamen 361005
2College of Information Science and Engineering, Huaqiao University, Xiamen 361021
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| Cite this article: |
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ZENG Ming-Ying, CUI Wei, TAN Xiao-Qin et al 2011 Chin. Phys. Lett. 28 066103 |
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Abstract Taking into account the surface-coupling strength effect, we discuss the phase transitions of a finite thickness cell bounded by surfactant-laden interfaces in a magnetic field perpendicular to the substrate and it is compared with that of a semi-infinite system. It is found that the larger the thickness, the closer the three-dimensional phase transition surface of the finite system to that of the semi-infinite one. The simulation also shows that when a magnetic field is applied to a nematic semi-infinite sample, an orientational phase transition first takes place close to the interface and then extends to the inner space as the temperature increases.
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| Keywords:
61.30.Hn
61.30.Gd
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Received: 11 January 2011
Published: 29 May 2011
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| PACS: |
61.30.Hn
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(Surface phenomena: alignment, anchoring, anchoring transitions, surface-induced layering, surface-induced ordering, wetting, prewetting transitions, and wetting transitions)
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61.30.Gd
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(Orientational order of liquid crystals; electric and magnetic field effects on order)
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