Domain-Wall Induced Phase Shifts in Spin Waves

Riccardo Hertel, Wulf Wulfhekel, and Jürgen Kirschner
Phys. Rev. Lett. 93, 257202 – Published 13 December 2004

Abstract

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.

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  • Received 23 December 2003

DOI:https://doi.org/10.1103/PhysRevLett.93.257202

©2004 American Physical Society

Authors & Affiliations

Riccardo Hertel*, Wulf Wulfhekel, and Jürgen Kirschner

  • Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, 06120 Halle, Germany

  • *Email address: r.hertel@fz-juelich.de Present address: Institute of Electronic Properties (IEE), Department of Solid State Research (IFF), Research Center Jülich, 52425 Jülich, Germany.

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Issue

Vol. 93, Iss. 25 — 17 December 2004

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