Field-Pulse-Induced Annealing of 2D Colloidal Polycrystals.

ABSTRACT: Two-dimensional colloidal crystals are of considerable fundamental and practical importance. However, their quality is often low due to the widespread presence of domain walls and defects. In this work, we explored the annealing process undergone by monolayers of superparamagnetic colloids adsorbed onto fluid interfaces in the presence of magnetic field pulses. These systems present the extraordinary peculiarity that both the extent and the character of interparticle interactions can be adjusted at will by simply varying the strength and orientation of the applied field so that the application of field pulses results in a sudden input of energy. Specifically, we have studied the effect of polycrystal size, pulse duration, slope and frequency on the efficiency of the annealing process and f

SUBMITTER: Martin-Roca J 

PROVIDER: S-EPMC9921439 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature