Toward the Discovery of Soft Quasicrystals : Simulation Point of View(<Special Issue>The Front Line of Pseudo-Crystalline Structures Formed by Complex Polymers)

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  • Dotera Tomonori
    Department of Polymer Chemistry, Kyoto University:(Present office)Department of Physics Kinki University

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  • ソフト準結晶発見に向けて : シミュレーションの立場から(<特集>複合高分子により形成される疑似結晶構造の最前線)
  • ソフト準結晶発見に向けて--シミュレーションの立場から
  • ソフト ジュンケッショウ ハッケン ニ ムケテ シミュレーション ノ タチバ カラ

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Recently much attention has been paid to the search of soft quasicrystals. In view of simulation studies, we explain how to construct quasicrystalline structures: The introduction of additional components, or new length scales is the key to find quasicrystals. We review some results from early to recent studies. In addition, we explain higher dimensional method, approximants, the theory of phason fluctuations, discussion about the origin of the formation of quasicrystals. Finally, we explain our recent studies on ABC star copolymer systems and present the results of simulations of dodecagonal polymeric quasicrystals. To find dodecagonal quasicrystals, the key is to search square-triangle tiling structures with changing components. The role of phason dynamics is also described.

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