Magnetic domain walls in constrained geometries

Details Magnetic domain walls in constrained geometries Magnetic domain walls in constrained geometries

2004-04-28

arxiv.org/abs/cond-mat/0404669v1

Phys. Rev. B 69, 220410(R) (2004)

Physics

Condensed Matter

Other Condensed Matter

4 pages, 6 figures

Scientific paper

10.1103/PhysRevB.69.220410

Magnetic domain walls have been studied in micrometer-sized Fe20Ni80 elements containing geometrical constrictions by spin-polarized scanning electron microscopy and numerical simulations. By controlling the constriction dimensions, the wall width can be tailored and the wall type modified. In particular, the width of a 180 degree Neel wall can be strongly reduced or increased by the constriction geometry compared with the wall in unconstrained systems.

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