Step-edge induced anisotropic domain-wall propagation |
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Authors: | Haibach Huth Adrian |
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Institution: | Institut fur Physik, Johannes Gutenberg-Universitat Mainz, D-55099 Mainz, Germany. |
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Abstract: | We report the observation of anisotropic domain-wall propagation in ultrathin magnetic films with perpendicular anisotropy. A controlled density of step edges was introduced which allowed us to quantify its influence on the domain-wall pinning. For a sawtooth arrangement of the step edges the corresponding wall movement resulted in triangular shaped domains. All aspects of this anisotropic domain-wall evolution could be reproduced by a simulation based on a modified Ginzburg-Landau-type soft-spin model. |
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