2026-04-13T02:17:27Zhttps://recercat.cat/oai/requestoai:recercat.cat:2445/1289352025-12-04T20:42:26Zcom_2072_1057col_2072_478822col_2072_478917
RECERCAT
author
Stoop, Ralph L.
author
Tierno, Pietro
2019-02-26T16:20:46Z2019-02-26T16:20:46Z2018-10-252019-02-26T16:20:46Z
Understanding microscale transport across heterogeneous landscapes is relevant for many phenomena in condensed matter physics, from pinning of vortices in dirty superconductors, to electrons on liquid helium, skyrmions, and active matter. Here, we experimentally investigate the clogging and jamming of field tunable interacting colloids driven through a quenched disordered landscape of fixed obstacles. We focus on the emergent phenomenon of clogging, that has been the matter of much investigation at the level of a single aperture in macroscopic and granular systems. With our colloidal system, we find that quenched disorder significantly alters the particle flow, and we provide the experimental observation of the 'Faster is Slower' effect with quenched disorder, that occurs when increasing the particle speed. Further, we show that clogging events may be controlled by tuning the pair interactions during transport, such that the colloidal flow decreases for repulsive interactions, but it increases for anisotropic attraction.
cc-by (c) Stoop, Ralph L. et al., 2018 http://creativecommons.org/licenses/by/3.0/es info:eu-repo/semantics/openAccess
Col·loides
Matèria condensada
Matèria condensada tova
Colloids
Condensed matter
Soft condensed matter
Clogging and jamming of colloidal monolayers driven across disordered landscapes
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion