Figure 2: Memory characteristics of 1R and 1D and 1D–1R cell.

I–V curve of (a) memory-only cell (1R cell in patterned 1R cell array), (b) diode-only cell (1D cell in patterned 1D cell array) and (c) vertically integrated 1D–1R cell in patterned 1D–1R cell array.