Barre 12-22 – 4e étage, pièce 426
Marisel Di Pietro Martinez, Postdoctoral Humboldt Fellow at the Max Planck Institute for Chemical Physics of Solids (Dresden, Germany)
Abstract
Understanding the processes of creation, propagation, and annihilation of topological defects is key to gaining control over the different processes they mediate. In magnetism, for instance, magnetic switching is mediated by domain wall motion while vortex core reversal is driven by Bloch point singularities. Here, we focus on magnetic dislocations in stripe domains and their role in the field-driven continuous rotation of the stripes. By harnessing both 2D and 3D magnetic imaging, specifically combining 3D soft X-ray magnetic vectorial imaging with in situ magnetic fields, not only we track and characterize the motion of these defects, but also understand how their underlying 3D configuration influences their behavior. These advances establish the necessary capabilities to study the behavior of topological textures in 3D, opening the door to insights into the field-driven behavior of buried three-dimensional magnetic textures.
