Ultrasensitive Anomalous Hall Effect in Ta/CoFe/Oxide/Ta Multilayers

Figure 2

Annealing temperature dependence of the anomalous Hall sensitivity for the sample Ta(0.8)/Co₂₀Fe₈₀(0.8)/HfO₂(0.8)/Ta(1.0) (in nm). Inset: anomalous Hall loops of the sample in the as-deposited and different annealed states.