2026-04-17T06:50:53Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1329722025-12-04T20:44:01Zcom_2072_1057col_2072_478822col_2072_478917

00925njm 22002777a 4500 dc Alert Zenón, Ricard author Casademunt i Viader, Jaume author Tierno, Pietro author 2019-05-10T11:39:40Z 2019-05-10T11:39:40Z 2014-11-04 2019-05-10T11:39:40Z We study the 2D crystalline phases of paramagnetic colloidal particles with dipolar interactions and constrained on a periodic substrate. Combining theory, simulation, and experiments, we demonstrate a new scenario of first-order phase transitions that occurs via a complete inversion of the energy landscape, featuring nonconventional properties that allow for (i) tuning of crystal symmetry, (ii) control of dynamical properties of different crystalline orders via tuning of their relative stability with an external magnetic field, (iii) an equivalent but independent control of the same dynamic properties via temporal modulations of that field, and (iv) nonstandard phase-ordering kinetics involving spontaneous formation of transient metastable domains. Física de partícules Paramagnetisme Particle physics Paramagnetism Landscape-Inversion Phase Transition in Dipolar Colloids: Tuning the Structure and Dynamics of 2D Crystals