该研究团队成功证实，高极化三维铁电液体在常温环境下具备形成自由悬浮流体纤维的非凡能力。与微晶调制和柱状相中的流体线程不同，这些线程需依赖平移序作为形成液体纤维的基础。然而，最新发现的铁电向列形成的纤维仅具备定向的分子序，因此需要一种基于中间相极性特性的额外稳定机制。
研究人员已提出该机制的模型，并揭示这些光纤具有特殊的非线性光学响应以及电场驱动下的不稳定性特征。
附：英文原文
Title: Fluid fibers in true 3D ferroelectric liquids
Author: Jarosik, Alexander, Nádasi, Hajnalka, Schwidder, Michael, Manabe, Atsutaka, Bremer, Matthias, Klasen-Memmer, Melanie, Eremin, Alexey
Issue&Volume: 2024-3-21
Abstract: 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.
DOI: 10.1073/pnas.2313629121
Source: https://www.pnas.org/doi/abs/10.1073/pnas.2313629121