Maria de Souza Lidiane, Sofi Junaid, Pereira Erms
Department of Physics, <a href="https://ror.org/02ksmb993">Federal Rural University of Pernambuco</a>, Recife 52171-900, Brazil.
Soft Matter Physics Group, School of Physics and Astronomy, <a href="https://ror.org/024mrxd33">University of Leeds</a>, Leeds LS2 9JT, United Kingdom.
Phys Rev E. 2024 Sep;110(3-1):034703. doi: 10.1103/PhysRevE.110.034703.
The synthesis of ferroelectric nematic liquid crystals (FNLCs) concludes the long wait for their existence and potential usage in multiple liquid crystal based applications. In FNLCs, electric polarization in the nematic phase significantly decreases the switching time of in-on display pixels. In this article, we report the occurrence of translation symmetry breaking for heat propagation along the director field n[over ̂] in the ferroelectric nematic phase. Due to the C_{∞V} symmetry of such a phase and close similarity to the bent-core polar liquid crystal phase, a rank-3 tensor describes its scalar order parameter and algebraic deductions. The finite element simulations show the occurrence of the nonsymmetrical thermal conductivity along n[over ̂]. The preferential heat transport in FNLCs can allow them to work as an all-thermal monophase non-nanostructured single-material thermal rectifier. We expect that this study will contribute towards the FNLCs application as functional layers and inks.
铁电向列型液晶（FNLCs）的合成结束了人们对其存在以及在多种基于液晶的应用中潜在用途的漫长等待。在FNLCs中，向列相中的电极化显著降低了显示像素从关到开的切换时间。在本文中，我们报告了在铁电向列相中沿指向矢场(\hat{n})的热传播出现平移对称性破缺的情况。由于该相具有(C_{\infty V})对称性且与弯曲核极性液晶相极为相似，一个三阶张量描述了其标量序参量并进行代数推导。有限元模拟表明沿(\hat{n})存在非对称热导率。FNLCs中优先的热输运特性可使其用作全热单相非纳米结构的单材料热整流器。我们期望这项研究将有助于FNLCs作为功能层和油墨的应用。
