Figure 3
From: Parallel fabrication of magnetic tunnel junction nanopillars by nanosphere lithography

(a) Distribution of resistance in 2 μm × 2 μm cells on a wafer with wedge shaped MgO barrier. The lines are guides for eyes only. (b) corresponding TMR ratios of the cells. (c) Histogram showing the counts of cells containing one, two or more nanopillars. (d) Representative TMR curve of a single-pillar cell. Inset shows the unipolar switching achieved with −0.76 V and −1.2 V pulses.