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  • Emergence of self-organized multivortex states inflocks of active rollers
    Han, Koohee ...
    Active matter, both synthetic and biological, demonstrates com-plex spatiotemporal self-organization and the emergence of col-lective 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 hasbeen a challenge. Here, we show by experiments and computa-tional modeling that concentrated magnetic rollers self-organizeinto multivortex states in an unconfined environment. We findthat the neighboring vortices more likely occur with the oppositesense of rotation. Our studies provide insights into the mech-anism for the emergence of coherent collective motion on themacroscale from the coupling between microscale rotation andtranslation of individual active elements. These results may stim-ulate design strategies for self-assembled dynamic materials andmicrorobotics.
    Vir: Proceedings of the National Academy of Sciences of the United States of America. - ISSN 0027-8424 (Vol. 117, no. 18, May 2020, str. 9706-9711)
    Vrsta gradiva - članek, sestavni del
    Leto - 2020
    Jezik - angleški
    COBISS.SI-ID - 17130755

    Povezava(-e):

    https://www.pnas.org/content/pnas/117/18/9706.full.pdf
    DOI

Vnos na polico