Abstract
Magnetic domain configurations of microstructured permalloy exchange coupled by an antiferromagnetic (NiO) thin film is presented. NiO/NiFe bilayer micrometer array elements were fabricated using electron beam lithography through a lift-off technique. The magnetic force microscopy images of the elliptical and rectangular elements with various aspect ratios showed dipole-like magnetic domain structures. The bright/dark arc contrast associated with the magnetic pole strength was dependent on the anisotropic exchange field. Furthermore, the shape anisotropy can overwhelm anisotropic exchange in patterned elements with a high aspect ratio and thicker permalloy film.
| Original language | English |
|---|---|
| Pages (from-to) | 4948-4950 |
| Number of pages | 3 |
| Journal | Journal of Applied Physics |
| Volume | 87 |
| Issue number | 9 II |
| Publication status | Published - 2000 May 1 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
Cite this
Wu, J-C., Huang, H. W., Lai, C. H., & Wu, T. H. (2000). Monodomain configurations due to bias effect in NiO/NiFe microstructures. Journal of Applied Physics, 87(9 II), 4948-4950.