C2: Unconventional dynamics at the mesoscale in constrained spin systems

Christian Back, Felix Büttner, István Kézsmárki

In this project we aim to confirm the recent and exciting prediction that magnetic Weyl semimetals offer exotic and highly efficient mechanisms of driving mesoscale spin textures owing due to spin-momentum locking. Such unconventional mechanisms may include exceptionally large non-adiabatic spin-transfer torques, the ability to drive domain walls by electric fields without a net charge current, and a modification of the fundamental speed of spin relaxation. We will quantify such effects in materials such as Fe2Sn3 and explore their potential in driving transitions between otherwise energetically protected phases.