Step-edge induced anisotropic domain-wall propagation

Citation
P. Haibach et al., Step-edge induced anisotropic domain-wall propagation, PHYS REV L, 84(6), 2000, pp. 1312-1315
Citations number
18
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
84
Issue
6
Year of publication
2000
Pages
1312 - 1315
Database
ISI
SICI code
0031-9007(20000207)84:6<1312:SIADP>2.0.ZU;2-J
Abstract
We report the observation of anisotropic domain-wall propagation in ultrath in magnetic films with perpendicular anisotropy. A controlled density of st ep edges was introduced which allowed us to quantify its influence on the d omain-wall pinning. For a sawtooth arrangement of the step edges the corres ponding 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.