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(Color online) Current vs voltage characteristics of (black squares), (green circles), and (red triangles) films.
(Color online) Cross-sectional TEM image and corresponding EDX profile of film (a) before forming and (b) after forming. EDX profile was scanned through the red lines with resolution. The red squares on the lines represent the position of the top electrode/NiO interfaces depicted as vertical lines on EDX profiles.
(Color online) (a) (red circles), (black circles), (b) (black circles), and (red circles) dispersions for (open circles), and (solid circles) films according to switching cycles. and are measured at .
(Color online) Current vs voltage characteristics of films with NiO thickness of (a) 100 and (b) .
Summary of memory switching parameters shown in Fig. 3.
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