Topological edge flows drive macroscopic re-organization in magnetic colloids

Autor:	Nelson, Aleksandra, Lobmeyer, Dana M., Biswal, Sibani L., Tang, Evelyn
Rok vydání:	2024
Předmět:	Condensed Matter - Soft Condensed Matter
Druh dokumentu:	Working Paper
Popis:	Magnetic colloids can be driven with time-varying fields to form clusters and voids that re-organize over vastly different timescales. However, the driving force behind these non-equilibrium dynamics is not well-understood. Here, we introduce a topological framework that predicts protected edge flows that drive reorganization, despite strong thermal motion. We verify this theory experimentally using micron-sized super-paramagnetic colloids to demonstrate how large-scale flow properties emerge. Our results elucidate fundamental principles that shape and control non-equilibrium colloidal aggregates. Comment: 6 pages, 4 figures in main text; the first two authors contributed equally to this work
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2409.15068 Zobrazit plný text záznamu View this record from Arxiv