Soliton walls paired by polar surface interactions in a ferroelectric nematic liquid crystal.
Soliton walls paired by polar surface interactions in a ferroelectric nematic liquid crystal.
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DOI：
10.1038/s41467-022-31593-w
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发表时间：
2022-07-07
影响因子：
16.6
通讯作者：
Lavrentovich, Oleg D.
中科院分区：
文献类型：
--
作者：
Basnet, Bijaya;Rajabi, Mojtaba;Wang, Hao;Kumari, Priyanka;Thapa, Kamal;Paul, Sanjoy;Lavrentovich, Maxim O.;Lavrentovich, Oleg D.
表面相互作用决定了凝聚态物质的许多性质，从晶体表面到相变动力学。通常，这些相互作用沿界面法向是极性的，在界面内是极性的。在这里，我们证明了铁电向列NF的极面内表面相互作用在微米薄的平面细胞中产生极单畴，在较厚的平板中产生由畴壁隔开的交变电极化条纹。表面极性将这些壁结合在一起，产生总极化旋转。极性对地表总锚固强度的贡献约为10%。畴壁涉及到极化的张开、弯曲和扭曲。结构表明，横向弹性常数大于弯曲模量。这些对类似于宇宙学模型中的畴壁，具有偏置真空和外部磁场中的铁磁体。表面相互作用通常沿界面法向呈极性，在界面内呈极性。在这里，作者发现极性面内表面相互作用在铁电向列液晶的主体中产生域结构。
Surface interactions are responsible for many properties of condensed matter, ranging from crystal faceting to the kinetics of phase transitions. Usually, these interactions are polar along the normal to the interface and apolar within the interface. Here we demonstrate that polar in-plane surface interactions of a ferroelectric nematic NF produce polar monodomains in micron-thin planar cells and stripes of an alternating electric polarization, separated by domain walls, in thicker slabs. The surface polarity binds together pairs of these walls, yielding a total polarization rotation by . The polar contribution to the total surface anchoring strength is on the order of 10%. The domain walls involve splay, bend, and twist of the polarization. The structure suggests that the splay elastic constant is larger than the bend modulus. The pairs resemble domain walls in cosmology models with biased vacuums and ferromagnets in an external magnetic field. Surface interactions are usually polar along the normal to the interface and apolar within the interface. Here, the authors find that polar in-plane surface interactions produce domain structures in the bulk of a ferroelectric nematic liquid crystal.
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影响因子：
13.6
作者：
Li J;Nishikawa H;Kougo J;Zhou J;Dai S;Tang W;Zhao X;Hisai Y;Huang M;Aya S
通讯作者：
Aya S
影响因子：
--
作者：
Evans, Donald M.;Garcia, Vincent;Bibes, Manuel
通讯作者：
Bibes, Manuel
影响因子：
2.4
作者：
Faetti, S;Marianelli, P
通讯作者：
Marianelli, P
DOI：
10.1007/bf02450386
发表时间：
1990-09-01
期刊：
NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA D-CONDENSED MATTER ATOMIC MOLECULAR AND CHEMICAL PHYSICS FLUIDS PLASMAS BIOPHYSICS
影响因子：
--
作者：
LAVRENTOVICH, OD;SERGAN, VV
通讯作者：
SERGAN, VV
影响因子：
3.2
作者：
Nastishin, YA;Polak, RD;Lavrentovich, OD
通讯作者：
Lavrentovich, OD