Magnetic colloidal single particles and dumbbells on a tilted washboard moire pattern in a precessing external field
Soft Condensed Matter
2026-04-08 v2
Abstract
We measure the dynamical behavior of colloidal singlets and dumbbells on an inclined magnetic moir\'e pattern, subject to a precessing external homogeneous magnetic field. At low external field strength single colloidal particles and dumbbells move everywhere on the pattern: At stronger external field strengths colloidal singlets and dumbbells are localized in generic locations. There are however nongeneric locations of flat channels that cross the moir\'e Wigner Seitz cell. In the flat channels we find gravitational driven translational and non-translational dynamic phase behavior of the colloidal singlets and dumbbells depending on the external field strength and the precession angle of the external homogeneous magnetic field.
Keywords
Cite
@article{arxiv.2412.07381,
title = {Magnetic colloidal single particles and dumbbells on a tilted washboard moire pattern in a precessing external field},
author = {Farzaneh Farrokhzad and Nex C. X. Stuhlmüller and Piotr Kuświk and Maciej Urbaniak and Feliks Stobiecki and Sapida Akhundzada and Arno Ehresmann and Daniel de las Heras and Thomas M. Fischer},
journal= {arXiv preprint arXiv:2412.07381},
year = {2026}
}