Jarosik Alexander, Nádasi Hajnalka, Schwidder Michael, Manabe Atsutaka, Bremer Matthias, Klasen-Memmer Melanie, Eremin Alexey
Department of Nonlinear Phenomena, Institute of Physics, Otto von Guericke University, Magdeburg 39106, Germany.
Department Industrial Chemistry, Institute of Chemistry, Otto von Guericke University, Magdeburg 39106, Germany.
Proc Natl Acad Sci U S A. 2024 Mar 26;121(13):e2313629121. doi: 10.1073/pnas.2313629121. Epub 2024 Mar 21.
We demonstrate an exceptional ability of a high-polarization 3D ferroelectric liquid to form freely suspended fluid fibers at room temperature. Unlike fluid threads in modulated smectics and columnar phases, where translational order is a prerequisite for forming liquid fibers, recently discovered ferroelectric nematic forms fibers with solely orientational molecular order. Additional stabilization mechanisms based on the polar nature of the mesophase are required for this. We propose a model for such a mechanism and show that these fibers demonstrate an exceptional nonlinear optical response and exhibit electric field-driven instabilities.
我们展示了一种高极化三维铁电液体在室温下形成自由悬浮流体纤维的卓越能力。与调制近晶相和柱状相中的流体细丝不同，在后者中平移有序是形成液体纤维的先决条件，而最近发现的铁电向列相形成的纤维仅具有取向分子有序。为此需要基于中间相极性的额外稳定机制。我们提出了这样一种机制的模型，并表明这些纤维表现出卓越的非线性光学响应并呈现电场驱动的不稳定性。
