Seminar: Magnetic Metamaterials: order and dynamics

  • Date:
  • Location: Zoom: https://uu-se.zoom.us/j/69916891557
  • Lecturer: Vassilios Kapaklis
  • Contact person: Annica Black-Schaffer
  • Seminarium

Advanced nano-lithographic processing has enabled fabrication of lattices of patterned ferroic materials - magnetic metamaterials - comprised of sub-μm elements. Fascinating emergent behaviour is realized taking advantage of interactions between individual elements, creating a basis for new functionality. The collective metamaterial properties differ strikingly from those of their constituent elements, being strongly defined by their geometrical arrangement, while the dynamic response can be studied by activation with magnetic fields, light or temperature. In my talk I will present design strategies for the realization of such artificial systems, exhibiting intriguing magnetic ordering driven by frustration. I will also further discuss fundamentals of the magnetic dynamics observed, as well as a proposal for practical applications in the realm of optics.