在向列相液晶中悬浮的球形微粒周围可能存在两种类型的缺陷:土星环结构和偶极子结构.文章通过计算它们的自由能,研究了向列相液晶中两种类型缺陷的稳定性.计算结果表明:当k24
The stability of Saturn-ring and dipole defects in nematic liquid crystals is studied.Two structures are possible around microspheres suspended in nematic liquid crystals: a Saturn-ring and a dipole, which are investigated by calculating their Frank free energy. As a result, if k24
参考文献
| [1] | Poulin P,Stark H,Lubensky T C,et al.Novel colloidal interactions in anisotropic fluids[J].Science,1997,275:1770-1773. |
| [2] | 王玉生,宋纳红.向列相液晶中向错线和向错点自由能的计算[J].液晶与显示,2008,23(3):261-265. |
| [3] | Lubensky T C,Pettey D,Currier N,et al.Topological defects and interactions in nematic emulsions[J].Phys.Rev.E,1998,57(1):610-625. |
| [4] | 王新久.液晶的结构、缺陷与织构[J].液晶与显示,1996,11(1):1-15. |
| [5] | Poulin P,Weitz D A.Inverted and multiple nematic emulsions[J].Phys.Rev.E.1998,57(1):626-637. |
| [6] | Poulin P,Cabuil V,Weitz D A.Direct measurement of colloidal forces in an anisotropic solvent[J].Phys.Rev.Lett.,1997,79(24):4862-4865. |
| [7] | Gu Y D,Abbott N L.Observation of saturn-ring defects around solid microspheres in nematic liquid crystals[J].Phys.Rev.Lett.,2000,85(22):4719-4722. |
| [8] | Frank F C.On the theory of liquid crystals[J].Discuss.Faraday Soc.,1958,25:19-28. |
| [9] | Wang Y S,Yang G H,Tian L J,et al.Stability of disclinations in nematic liquid crystals[J].Commun.Theor.Phys.,2006,45(6):993-999. |
| [10] | Kleman M.Points Lines and Walls:in Liquid Crystals,Magnetic Systems and Various Disordered Media[M].New York:Wiley,1983. |
| [11] | Dennes P G.The Physics of Liquid Crystals[M].London:Oxford University,1974. |
| [12] | Mori H,Nakanishi H.On the stability of topologically non-trivial point defects[J].J.Phys.Sco.J pn.,1988,57(4):1281-1286. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%