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PreprintarXiv licencearXiv

Complex pattern in periodically driven binary Quincke colloids

  • Chuan Yu Zhang
  • Mu Yue Zhao
  • Xiao Yi Zhou
  • Wen-De Tian
  • Kang Chen
  • Tian Hui Zhang
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Abstract

Binary active systems offer a minimal platform for understanding how component heterogeneity organizes non-equilibrium structures. Here we show that in a binary Quincke system driven by a periodic square-wave electric field, a dynamic square lattice in which small particles occupy the lattice-cell centers which are surrounded by large particles emerges spontaneously. Particle-resolved trajectories reveal that the size separation arises from the mobility difference of large particles and small particles. Increasing the driving frequency reduces the single-cycle path lengths of both species and simultaneously decreases the lattice constant. These results show how size-dependent activity,density redistribution, and periodic forcing cooperate to generate tunable complex active patterns.

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Cite

BibTeXRIS
BibTeX
@misc{zhang2026complex,
  title = {{Complex pattern in periodically driven binary Quincke colloids}},
  author = {Chuan Yu Zhang and Mu Yue Zhao and Xiao Yi Zhou and Wen-De Tian and Kang Chen and Tian Hui Zhang},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.19593},
  eprint = {2610.19593},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.19593},
}
RIS
TY  - UNPB
TI  - Complex pattern in periodically driven binary Quincke colloids
AU  - Chuan Yu Zhang
AU  - Mu Yue Zhao
AU  - Xiao Yi Zhou
AU  - Wen-De Tian
AU  - Kang Chen
AU  - Tian Hui Zhang
PY  - 2026
DA  - 2026/10/14
PB  - arXiv
DO  - 10.48550/arxiv.2610.19593
UR  - https://arxiv.org/abs/2610.19593
AB  - Binary active systems offer a minimal platform for understanding how component heterogeneity organizes non-equilibrium structures. Here we show that in a binary Quincke system driven by a periodic square-wave electric field, a dynamic square lattice in which small particles occupy the lattice-cell centers which are surrounded by large particles emerges spontaneously. Particle-resolved trajectories reveal that the size separation arises from the mobility difference of large particles and small particles. Increasing the driving frequency reduces the single-cycle path lengths of both species and simultaneously decreases the lattice constant. These results show how size-dependent activity,density redistribution, and periodic forcing cooperate to generate tunable complex active patterns.
ER  -