20.500.12556/RUL-153577 Spontaneous chiral symmetry breaking and lane formation in ferromagnetic ferrofluids Ferromagnetic ferrofluids are synthetic materials consisting of magnetic nanoplatelets dispersed in an isotropic fluid. Their main characteristics are the formation of stable magnetic domains and the presence of macroscopic magnetization even in the absence of a magnetic field. Here, the authors report on the experimental observation of spontaneous stripe formation in a ferromagnetic ferrofluid in the presence of an oscillating external magnetic field. The striped structure is identified as elongated magnetic domains, which exhibit reorientation upon reversal of the magnetic field. The stripes are oriented perpendicular to the magnetic field and are separated by alternating flow lanes. The velocity profile is measured using a space–time correlation technique that follows the motion of the thermally excited fluctuations in the sample. The highest velocities are found in the depleted regions between individual domains and reach values up to several µm s$^{−1}$. The fluid in adjacent lanes moves in the opposite directions despite the applied magnetic field being uniform. The formation of bidirectional flow lanes can be explained by alternating rotation of magnetic nanoparticles in neighboring stripes, which indicates spontaneous breaking of the chiral symmetry in the sample. active matter chiral symmetry breaking ferrofluids ferromagnetism ferofluidi feromagnetizem zlomi kiralne simetrije true false true Angleški jezik Slovenski jezik Članek v reviji 2024-01-16 13:44:45 2024-01-16 13:44:50 2024-01-17 03:43:22 0000-00-00 00:00:00 2023 0 0 11 str. iss. 52, art. 2304387 Vol. 19 Dec. 2023 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 537 1613-6829 10.1002/smll.202304387 163350531 Small_-_2023_-_Vilfan_-_Spontaneous_Chiral_Symmetry_Breaking_and_Lane_Formation_in_Ferromagnetic_Ferrofluids.pdf Small_-_2023_-_Vilfan_-_Spontaneous_Chiral_Symmetry_Breaking_and_Lane_Formation_in_Ferromagnetic_Ferrofluids.pdf 1 8D82C053BBCDDBF9AEF322CB818C8247 f90b9191260af176f03ab61dcfc61d896bc6170b463f3879968b173059461891 7b8e4438-b46d-11ee-9139-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=179660 https://onlinelibrary.wiley.com/doi/10.1002/smll.202304387 0 4c6e2596-b46d-11ee-9139-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=179659 Fakulteta za matematiko in fiziko 0 0 0