The C-V curves. The C-V curves of the fresh, programming (at 10 V, 1 ms) and erasing (at 11 V, 1 s) states for all samples. All the gate voltages were normalized with the VFB of the fresh-state C-V curve (VFBf).
Wang et al. Nanoscale Research Letters 2012 7:177 doi:10.1186/1556-276X-7-177