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Typical EHE loop for xTa = 0 nm. The red curve shows the minor cycle of the soft layer.
Part of the EHE hysteresis loops (between +4 and −1kOe) for xTa = 0.4, 0.5, and 0.6 nm.
Relative Hall contribution of the in-plane component of the bottom electrode as a function of the Ta insertion thickness.
Variation as a function of the Ta insertion thickness of (a) the perpendicular anisotropy field of the in-plane contribution (black circles, right-hand scale) and (b) the coupling field between the bottom and top magnetic layers through the MgO barrier (red triangles, left-hand scale).
TMR evolution as a function of the Ta insertion thickness.
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