Mesoscopic magnetic systems: From fundamental properties to devices

Research into mesoscopic magnetic systems, which incorporate magnetic elements with dimensions ranging from a few nm up to a few tens of μm, has been spurred on by the developments in their fabrication, characterization, and control. This Special Topic on mesoscopic magnetic systems includes articles in the areas of current interest, which include experiments, theory, and simulations in this fascinating field. The Special Topic will provide inspiration for the future, either in terms of fundamental science and discovery or for more applied work to create novel devices. In this Special Topic, researchers provide an overview of the field with current areas of interest and perspectives toward the future. In other articles, it is shown how the detailed arrangement of the nanomagnets plays an important role in defining the collective properties, both the static and dynamic, including magnetization reversal and spin wave modes.