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

Author

Listed:
  • Zhanglin Hou

    (Tianjin University)

  • Yiwu Zong

    (Tianjin University)

  • Zhaoyan Sun

    (Chinese Academy of Sciences
    University of Science and Technology of China)

  • Fangfu Ye

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Thomas G. Mason

    (University of California Los Angeles
    University of California Los Angeles)

  • Kun Zhao

    (Tianjin University
    Tianjin University)

Abstract

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.

Suggested Citation

  • Zhanglin Hou & Yiwu Zong & Zhaoyan Sun & Fangfu Ye & Thomas G. Mason & Kun Zhao, 2020. "Emergent tetratic order in crowded systems of rotationally asymmetric hard kite particles," Nature Communications, Nature, vol. 11(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-15723-w
    DOI: 10.1038/s41467-020-15723-w
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