Fluctuations of a homeotropically aligned nematic liquid crystal in the presence of an applied voltage
| dc.creator | Zhou, Sheng-Qi | |
| dc.creator | Ahlers, Guenter | |
| dc.date | 2004-09-07 | |
| dc.date | 2004-09-13 | |
| dc.date.accessioned | 2026-07-07T05:35:56Z | |
| dc.date.available | 2026-07-07T05:35:56Z | |
| dc.description | We determined the refractive-index structure-factor $S_n(\bf k)$ from shadowgraphs of fluctuations in a layer of a homeotropically aligned nematic liquid crystal with negative dielectric anisotropy in the presence of an ac voltage of amplitude $V_0$ applied orthogonal to the layer. $S_n(\bf k)$ had rotational symmetry. Its integral $P(V_0)$ and amplitude $B(V_0)$ increased smoothly through the Fréedericksz transition at $V_0 = V_F$. Its inverse width $ξ(V_0)$ and its relaxation rate $Γ_0(V_0)$ had cusps but remained finite at $V_F$. The results are inconsistent with the critical mode at a second-order phase transition. | |
| dc.description | 4 pages, 5 figures | |
| dc.identifier | https://arxiv.org/abs/nlin/0409015 | |
| dc.identifier | http://arxiv.org/abs/nlin/0409015 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/80826 | |
| dc.subject | Pattern Formation and Solitons | |
| dc.title | Fluctuations of a homeotropically aligned nematic liquid crystal in the presence of an applied voltage | |
| dc.type | text |