气候变化领域集成服务门户(CCPortal): Emergence of self-organized multivortex states in flocks of active rollers

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DOI	10.1073/pnas.2000061117
	Emergence of self-organized multivortex states in flocks of active rollers
	Han K.; Kokot G.; Tovkach O.; Glatz A.; Aranson I.S.; Snezhko A.
发表日期	2020
ISSN	0027-8424
起始页码	9706
结束页码	9711
卷号	117 期号:18
英文摘要	Active matter, both synthetic and biological, demonstrates complex spatiotemporal self-organization and the emergence of collective behavior. A coherent rotational motion, the vortex phase, is of great interest because of its ability to orchestrate well-organized motion of self-propelled particles over large distances. However, its generation without geometrical confinement has been a challenge. Here, we show by experiments and computational modeling that concentrated magnetic rollers self-organize into multivortex states in an unconfined environment. We find that the neighboring vortices more likely occur with the opposite sense of rotation. Our studies provide insights into the mechanism for the emergence of coherent collective motion on the macroscale from the coupling between microscale rotation and translation of individual active elements. These results may stimulate design strategies for self-assembled dynamic materials and microrobotics. © 2020 National Academy of Sciences. All rights reserved.
英文关键词	Active matter; Collective behavior; Multivortex; Self-organization
语种	英语
scopus关键词	article; computer model; rotation
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160294
作者单位	Han, K., Material Science Division, Argonne National Laboratory, Lemont, IL 60439, United States; Kokot, G., Material Science Division, Argonne National Laboratory, Lemont, IL 60439, United States, Department of Engineering Science and Applied Mathematics, Northwestern University, Evanston, IL 60201, United States; Tovkach, O., Department of Biomedical Engineering, Pennsylvania State University, University Park, PA 16802, United States; Glatz, A., Material Science Division, Argonne National Laboratory, Lemont, IL 60439, United States, Department of Physics, Northern Illinois University, DeKalb, IL 60115, United States; Aranson, I.S., Department of Biomedical Engineering, Pennsylvania State University, University Park, PA 16802, United States, Department of Chemistry, Pennsylvania State University, University Park, PA 16802, United States, Department of Mathematics, Pennsylvania State University, University Park, PA 16802, United States; Snezhko, A., Material Science Division, Argonne National Lab...
推荐引用方式 GB/T 7714	Han K.,Kokot G.,Tovkach O.,et al. Emergence of self-organized multivortex states in flocks of active rollers[J],2020,117(18).
APA	Han K.,Kokot G.,Tovkach O.,Glatz A.,Aranson I.S.,&Snezhko A..(2020).Emergence of self-organized multivortex states in flocks of active rollers.Proceedings of the National Academy of Sciences of the United States of America,117(18).
MLA	Han K.,et al."Emergence of self-organized multivortex states in flocks of active rollers".Proceedings of the National Academy of Sciences of the United States of America 117.18(2020).