Emergent tetratic order in crowded systems of rotationally asymmetric hard kite particles

被引：0

作者：

Zhanglin Hou

Yiwu Zong

Zhaoyan Sun

Fangfu Ye

Thomas G. Mason

Kun Zhao

机构：

[1] Tianjin University,Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology

[2] Chinese Academy of Sciences,State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry

[3] University of Science and Technology of China,Beijing National Laboratory for Condensed Matter Physics and Laboratory of Soft Matter and Biological Physics, Institute of Physics

[4] Chinese Academy of Sciences,Wenzhou Institute

[5] University of Chinese Academy of Sciences,Department of Physics and Astronomy

[6] University of California Los Angeles,Department of Chemistry and Biochemistry

[7] University of California Los Angeles,Physics Department

[8] Tianjin University,undefined

来源：

Nature Communications | / 11卷

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摘要：

Considering multi-body systems of monodisperse hard Brownian particles, it remains challenging to predict the forms of order that can emerge in their dense assembled structures. Surprisingly, here, using Monte Carlo simulations, we show that tetratic-ordered phases emerge in a dense two-dimensional system of hard kites that are rotationally asymmetric and have opposite 72° and α ≈ 90° internal angles. We observe a new tetragonal rectangular crystal (TRX) phase possessing (quasi-)long-range fourfold molecular-orientational order. We propose a method based on local polymorphic configurations of neighboring particle pairs (LPC-NPPs) to understand this emergent tetratic order and show that LPC-NPPs can be useful for predicting orientational order in such systems. To examine the dependence of the tetratic order on α, we apply LPC-NPP analysis to other hard kites for 54° ≤ α ≤ 144°. Our work provides insight into the creation of novel ordered materials by rationally designing particle shape based on anticipated LPC-NPPs.

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