Year: 2024
Type: article
Abstract: In our combined experimental, theoretical, and numerical work, we study the out-of-equilibrium deformations in a shrinking ring of optically trapped, interacting colloidal particles. Steerable optical tweezers are used to confine dielectric microparticles along a circle of discrete harmonic potential wells, and to reduce the ring radius at a controlled quench speed. We show that excluded-volume interactions are enough to induce particle sliding from their equilibrium positions and nonequilibrium zigzag roughening of the colloidal structure. Our work unveils the underlying mechanism of interfacial deformation in radially driven microscopic discrete rings. Published by the American Physical Society 2024
Source: Physical Review Research
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,625
Funders: European Commission, Deutsche Forschungsgemeinschaft, Generalitat de Catalunya, Ministerio de Economía y Competitividad, Institució Catalana de Recerca i Estudis Avançats, Berlin Mathematics Research Center MATH+, Agència de Gestió d'Ajuts Universitaris i de Recerca, Horizon 2020, Agencia Estatal de Investigación, H2020 European Research Council
Awards: G1372115314, G1927144434, G2033548659, G2343511621, G3105282479, G3905351452, G434337789, G4646418747, G5853193109, G6020872488, G743358325, ENgineering FrustratiOn in aRtificial Colloidal icEs: degeneracy, exotic lattices and 3D states, EXC 2046: MATH+: Berlin Mathematics Research Center, G8629429986
OpenAlex ID: W4392387282