Full text loading...
The characteristics of NiO films using Pt (black), Ta (red), and (green) top metal electrode (a) at the as-deposition state (b) after one day. All samples have a Pt bottom electrode.
Ellingham diagram plotting the standard free energies of the formation of oxides of the metals mentioned in manuscript.
(a) Comparison of the resistance values after a reset process and the characteristics of (black square), (red circle), and (green triangle). (b) characteristics of a NiO film with a Ag top electrode.
X-ray photoelectron spectra of (a) and , and (b) and . , , , and in (a) correspond to the blue, green, red, brown lines, respectively. For confirming clear peak position, the XPS spectrum was fitted by using a combination of Gaussian (70%) and Lorentzian (30%) distributions (gray dashed lines). The curves fit for peaks were obtained using a fixed amplitude ratio with a minimum number of doublets in order to fit the experimental curves. In (b), and peaks at 374.1 and 368.1 eV indicate .
Article metrics loading...