Domain-wall induced phase shifts in spin waves.
We study the interaction between two important features of ferromagnetic nanoparticles: magnetic domain walls and spin waves. Micromagnetic simulations reveal that magnetostatic spin waves change their phase as they pass through domain walls. Similar to an Aharonov-Bohm experiment, we suggest to probe this effect by splitting the waves on different branches of a ring. The interference of merging waves depends on the domain walls in the branches. A controlled manipulation of spin-wave phases could be the first step towards nanoscaled ferromagnetic devices performing logical operations based on spin-wave propagation.
Hertel
Riccardo
R
Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, 06120 Halle, Germany. r.hertel@fz-juelich.de
Wulfhekel
Wulf
W
Kirschner
Jürgen
J