Figure 8
From: Scalable Memdiodes Exhibiting Rectification and Hysteresis for Neuromorphic Computing
The role of oxygen stoichiometry in mid-gap state creation. HAXPES spectra of the core levels and valence band show an increase in mid-gap states at the Fermi Level with decreases in bulk oxygen content. The inset shows the change in mid-gap states, with the estimated valence band maxima (gray dotted line) shown near 3 eV indicating the mid-gap states exist throughout the ~3.15 eV band gap.
