論文雑誌「Soft Matter」のカバーピクチャーを制作しました［産業技術総合研究所］
弊社で制作しました産業技術総合研究所 義永那津人様ご依頼のカバーアートが、
イギリスの王立化学会発行の学術雑誌 Soft Matter 2022年10月号に選ばれました。
Client
国立研究開発法人産業技術総合研究所
数理先端材料モデリングオープンイノベーションラボラトリ
義永那津人様
数理先端材料モデリングオープンイノベーションラボラトリ
義永那津人様
Journal
Soft Matter
21 October 2022, Issue 39 Link
21 October 2022, Issue 39 Link
Formation and fluctuation of two-dimensional dodecagonal quasicrystals
Uyen Tu Lieu and Natsuhiko Yoshinaga
The self-assembly of two-dimensional dodecagonal quasicrystals (DDQCs) from patchy particles is investigated by Brownian dynamics simulations. The patchy particle has a five-fold rotational symmetry pattern described by the spherical harmonics Y55. From the formation of the DDQC obtained by an annealing process, we find the following mechanism. The early stage of the dynamics is dominated by hexagonal structures. Then, nucleation of dodecagonal motifs appears by particle rearrangement, and finally the motifs span the whole system. The transition from the hexagonal structure into the dodecagonal motif is coincident with the collective motion of the particles. The DDQC consists of clusters of dodecagonal motifs, which can be classified into several packing structures. By the analyses of the DDQC under fixed temperature, we find that the fluctuations are characterised by changes in the network of the dodecagonal motifs. Finally we compare the DDQCs assembled from the patchy particle system and isotropic particle system. The two systems share a similar mechanism of the formation and fluctuation of DDQCs.
Link
Uyen Tu Lieu and Natsuhiko Yoshinaga
The self-assembly of two-dimensional dodecagonal quasicrystals (DDQCs) from patchy particles is investigated by Brownian dynamics simulations. The patchy particle has a five-fold rotational symmetry pattern described by the spherical harmonics Y55. From the formation of the DDQC obtained by an annealing process, we find the following mechanism. The early stage of the dynamics is dominated by hexagonal structures. Then, nucleation of dodecagonal motifs appears by particle rearrangement, and finally the motifs span the whole system. The transition from the hexagonal structure into the dodecagonal motif is coincident with the collective motion of the particles. The DDQC consists of clusters of dodecagonal motifs, which can be classified into several packing structures. By the analyses of the DDQC under fixed temperature, we find that the fluctuations are characterised by changes in the network of the dodecagonal motifs. Finally we compare the DDQCs assembled from the patchy particle system and isotropic particle system. The two systems share a similar mechanism of the formation and fluctuation of DDQCs.
Link
