Generation of local magnetic fields at megahertz rates for the study of domain wall propagation in magnetic nanowires
- Bergman, B.
- Moriya, R.
- Hayashi, M.
- Thomas, L.
- Tyberg, C.
- Lu, Y.
- Joseph, E.
- Rothwell, M.-B.
- Hummel, J.
- Gallagher, W.J.
- Koopmans, B.
- Parkin, S.S.P.
DOIAbstract
We describe a technique for generating local magnetic fields at megahertz rates along magnetic nanowires. Local and global magnetic fields are generated from buried copper fine-pitch wires fabricated on 200 mm silicon wafers using standard complementary metal-oxide-semiconductor back-end process technology. In combination with pump-probe scanning Kerr microscopy, we measure the static and dynamic propagation fields of domain walls in permalloy nanowires
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