We work on the theory of topological spin dynamics, broadly covering the following areas:

  • Quantum matter: topological materials, quantum magnetism, topological spin excitations, topological magnons, few- and many-body effects in quantum spin systems, anomalous transport (e.g., thermal Hall effect), semiclassical theories and simulations based on the atomistic Landau-Lifshitz-Gilbert equation
  • Quantum science: solid-state based quantum computing / memories, light-matter coupling, quantum hybrid systems
  • Spin electronics: spin transport in unconventional magnets and two-dimensional materials, insulator spintronics and spincaloritronics

A main focus of our work is TopMagIc: Topological Magnetoinsulatronics. Within TopMagIc we explore the basic science and lay the theoretical foundations of topological magnetic excitations in magnetic insulators to facilitate the development of low-energy technologies utilizing robust magnetic signals in insulators. At the heart of TopMagIc are topological magnon insulators that support magnonic chiral edge states, similar to quantum Hall edge states. As chiral edge magnons lack Joule heating and are immune to back-scattering, they are ideal for meeting the grand challenge of developing technologies with minimal environmental impact.

TopMagIc is funded within the Emmy Noether Programme of the German Research Foundation (DFG, Deutsche Forschungsgemeinschaft) - Project No. 504261060.