Suppr超能文献

空间限制决定了斑状粒子的取向有序性。

Spatial confinement governs orientational order in patchy particles.

作者信息

Iwashita Yasutaka, Kimura Yasuyuki

机构信息

Department of Physics, Kyushu University, 819-0395 Fukuoka, Japan.

出版信息

Sci Rep. 2016 Jun 6;6:27599. doi: 10.1038/srep27599.

Abstract

Orientational order in condensed matter plays a key role in determining material properties such as ferromagnetism, viscoelasticity or birefringence. We studied purely orientational ordering in closely-packed one-patch colloidal particles confined between flat substrates, where the particles can only rotate and are ordered via the sticky interaction between the patches. For the first time, we experimentally realized a rich variety of mesoscopic patterns through orientational ordering of colloids by controlling patch size and confinement thickness. The combination of experiment and numerical simulation reveals the decisive role of confinement: An ordered state(s) is selected from the (meta)stable options in bulk when it is commensurate with the system geometry and boundary conditions; otherwise, frustration induces a unique order. Our study offers a new means of systematic control over mesoscopic structures via orientational ordering in patchy particles. The system would also possess unique functionalities through the rotational response of the particles to external stimuli.

摘要

凝聚态物质中的取向有序在决定诸如铁磁性、粘弹性或双折射等材料特性方面起着关键作用。我们研究了紧密堆积在平面基板之间的单斑块胶体颗粒中的纯取向有序,其中颗粒只能旋转,并通过斑块之间的粘性相互作用实现有序排列。我们首次通过控制斑块大小和限制厚度,通过胶体的取向有序实验实现了丰富多样的介观图案。实验与数值模拟相结合揭示了限制的决定性作用:当有序态与系统几何形状和边界条件相匹配时,从体相中的(亚)稳定选项中选择一种有序态;否则,受挫会诱导出独特的有序态。我们的研究提供了一种通过斑块颗粒中的取向有序来系统控制介观结构的新方法。该系统还将通过颗粒对外部刺激的旋转响应而具有独特的功能。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4d55/4893746/a58f377d2414/srep27599-f1.jpg

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验