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Hole current vs magnetic field for the structure at different electron injection voltage. States of parallel (P) and antiparallel (AP) alignment of the and Co magnetizations are indicated, as are the field sweep directions (arrows). and .
Top panel: hole current per nanoamperes of injected tunnel current versus electron injection voltage for P and AP magnetic states of a structure with of . Bottom panel: magnetocurrent vs electron injection voltage for two structures with 1.8 and of . .
MC (top panel) and hole current in P and AP states (middle panel) vs NiFe thickness for the structure at . The dashed line in the top panel is a guide to the eye. The solid lines in the middle panel represent fits based on exponential decay. Bottom panel: variation of decay length with electron injection voltage for P and AP states. .
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