Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Confinement of surface spinners in liquid metamaterials. / Gorce, Jean Baptiste; Xia, Hua; Francois, Nicolas и др.
в: Proceedings of the National Academy of Sciences of the United States of America, Том 116, № 51, 17.12.2019, стр. 25424-25429.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Confinement of surface spinners in liquid metamaterials
AU - Gorce, Jean Baptiste
AU - Xia, Hua
AU - Francois, Nicolas
AU - Punzmann, Horst
AU - Falkovich, Gregory
AU - Shats, Michael
N1 - Publisher Copyright: © 2019 National Academy of Sciences. All rights reserved.
PY - 2019/12/17
Y1 - 2019/12/17
N2 - We show that rotating particles at the liquid–gas interface can be efficiently manipulated using the surface-wave analogue of optical lattices. Two orthogonal standing waves generate surface flows of counter-rotating half-wavelength unit cells, the liquid interface metamaterial, whose geometry is controlled by the wave phase shift. Here we demonstrate that by placing active magnetic spinners inside such metamaterials, one makes a powerful tool which allows manipulation and self-assembly of spinners, turning them into vehicles capable of transporting matter and information between autonomous metamaterial unit cells. We discuss forces acting on a spinner carried by a nonuniform flow and show how the forces confine spinners to orbit inside the same-sign vortex cells of the wave-driven flow. Reversing the spin, we move the spinner into an adjacent cell. By changing the spinning frequency or the wave amplitude, one can precisely control the spinner orbit. Multiple spinners within a unit cell self-organize into stable patterns, e.g., triangles or squares, orbiting around the center of the cell. Spinners having different frequencies can also be confined, such that the higher-frequency spinner occupies the inner orbit and the lower-frequency one circles on the outer orbit, while the orbital motions of both spinners are synchronized.
AB - We show that rotating particles at the liquid–gas interface can be efficiently manipulated using the surface-wave analogue of optical lattices. Two orthogonal standing waves generate surface flows of counter-rotating half-wavelength unit cells, the liquid interface metamaterial, whose geometry is controlled by the wave phase shift. Here we demonstrate that by placing active magnetic spinners inside such metamaterials, one makes a powerful tool which allows manipulation and self-assembly of spinners, turning them into vehicles capable of transporting matter and information between autonomous metamaterial unit cells. We discuss forces acting on a spinner carried by a nonuniform flow and show how the forces confine spinners to orbit inside the same-sign vortex cells of the wave-driven flow. Reversing the spin, we move the spinner into an adjacent cell. By changing the spinning frequency or the wave amplitude, one can precisely control the spinner orbit. Multiple spinners within a unit cell self-organize into stable patterns, e.g., triangles or squares, orbiting around the center of the cell. Spinners having different frequencies can also be confined, such that the higher-frequency spinner occupies the inner orbit and the lower-frequency one circles on the outer orbit, while the orbital motions of both spinners are synchronized.
KW - Active spinners
KW - Fluid vortex lattice
KW - Water wave
KW - Wave control
UR - http://www.scopus.com/inward/record.url?scp=85076707191&partnerID=8YFLogxK
U2 - 10.1073/pnas.1912905116
DO - 10.1073/pnas.1912905116
M3 - Article
C2 - 31801882
AN - SCOPUS:85076707191
VL - 116
SP - 25424
EP - 25429
JO - Proceedings of the National Academy of Sciences of the United States of America
JF - Proceedings of the National Academy of Sciences of the United States of America
SN - 0027-8424
IS - 51
ER -
ID: 23055188