globalchange  > 气候变化与战略
DOI: 10.1073/pnas.1720828115
论文题名:
Soft self-assembly of Weyl materials for light and sound
作者: Fruchart M.; Jeon S.-Y.; Hur K.; Cheianov V.; Wiesner U.; Vitelli V.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2018
卷: 115, 期:16
起始页码: E3655
结束页码: E3664
语种: 英语
英文关键词: Colloids ; Metamaterials ; Polymers ; Semimetal ; Topological matter
Scopus关键词: biomaterial ; copolymer ; unclassified drug ; weyl material ; crystal structure ; frequency analysis ; light ; materials science ; mathematical computing ; priority journal ; Review ; simulation ; sound ; structure analysis ; surface property ; theoretical model
英文摘要: Soft materials can self-assemble into highly structured phases that replicate at the mesoscopic scale the symmetry of atomic crystals. As such, they offer an unparalleled platform to design mesostructured materials for light and sound. Here, we present a bottom-up approach based on self-assembly to engineer 3D photonic and phononic crystals with topologically protected Weyl points. In addition to angular and frequency selectivity of their bulk optical response, Weyl materials are endowed with topological surface states, which allow for the existence of one-way channels, even in the presence of time-reversal invariance. Using a combination of group-theoretical methods and numerical simulations, we identify the general symmetry constraints that a self-assembled structure has to satisfy to host Weyl points and describe how to achieve such constraints using a symmetry-driven pipeline for self-assembled material design and discovery. We illustrate our general approach using block copolymer self-assembly as a model system. © 2018 National Academy of Sciences. All rights reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/163756
Appears in Collections:气候变化与战略

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作者单位: Fruchart, M., Lorentz Institute, Leiden University, Leiden RA, 2300, Netherlands; Jeon, S.-Y., Center for Computational Science, Korea Institute of Science and Technology, Seoul, 02792, South Korea; Hur, K., Center for Computational Science, Korea Institute of Science and Technology, Seoul, 02792, South Korea; Cheianov, V., Lorentz Institute, Leiden University, Leiden RA, 2300, Netherlands; Wiesner, U., Department of Materials Science and Engineering, Cornell University, Ithaca, NY 14850, United States; Vitelli, V., Lorentz Institute, Leiden University, Leiden RA, 2300, Netherlands, Department of Physics, University of Chicago, Chicago, IL 60637, United States

Recommended Citation:
Fruchart M.,Jeon S.-Y.,Hur K.,et al. Soft self-assembly of Weyl materials for light and sound[J]. Proceedings of the National Academy of Sciences of the United States of America,2018-01-01,115(16)
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