Co/Pt multilayer dots with perpendicular anisotropy and with diameters of 250 and 350 nm were fabricated on top of a Hall cross configuration. The angular dependence of the magnetic reversal of the individual dot was investigated by Anomalous Hall effect measurements. At near in-plane angles (85° with the magnetic easy axis) the dot switches partially into a stable two-domain state. This allows for separate analysis of the angular dependence of both the field required for nucleation of a reversed domain, and the field required for depinning of the domain wall. The angular dependence of the depinning field fits accurately to a 1/cos(θ) behavior, whereas the angular dependence of the nucleation field shows a minimum close to 45°. The latter dependency can be accurately fitted to the modified Kondorsky model proposed by Schumacher  F. Schumacher. Journal of Applied Physics, 70 (1991), p. 3184. | View Record in Scopus | | Full Text via CrossRef | Cited By in Scopus (5).
- TST-uSPAM: micro Scanning Probe Array Memory
- Magnetic data storage
- TSTNE-Magnet-AHE: Anomalous Hall Effect
- TST-SMI: Formerly in EWI-SMI
- Anomalous Hall Effect
- Domain nucleation