Studying the Dynamics of Massive Interfaces

PURRELLO V H

Grenoble

Seminario; Seminaires du groupe de Physique Statistique et Modélisation; 2018

Laboratoire Interdisciplinaire de Physique

Interfaces are ubiquitous and can be seen in phenomena as large asforest fires, or as small as domain walls in ferromagnetic materials.In our work, we describe the latter by developing models and runninglarge-scale simulations using GPGPU to test our predictions. We havestudied interfaces by modeling them as driven elastic manifolds inquenched random media, where we analyzed the role of the elasticity,the disorder and different thermal effects. Now we are consideringinterfaces with mass, which could play the same role as the memoryeffects induced by the phase in spintronic models. The inertial termis already giving us exciting results as, for instance, a lowercritical force for the depinning transition, or the possible presenceof a critical mass.