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. 2016 Mar 4;7:10854. doi: 10.1038/ncomms10854

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The small arrows represent the uncompensated spin direction in each grain at the interface with the ferromagnet. (a) Situation after field-cooling, showing an average EB field H_EB (orange arrow). Partial magnetization reversal occurs in the adjacent ferromagnetic layer after (b) a current pulse along the EB direction or (c) a current pulse perpendicular to the EB direction. Switched regions are indicated in orange and blocked regions are indicated in dark blue. Grey arrows show the current flow direction.