Figure 4
From: Forming-less and Non-Volatile Resistive Switching in WOX by Oxygen Vacancy Control at Interfaces
UPS analysis for the work function extraction and construction of band structure to explain the mechanism; UPS spectra of (a) Pt, (b) Au, and (c) WOX with the work functions of the top and bottom electrodes, respectively. The inset figures indicate the extraction of Ecutoff and EF energy from the high- and low-energy shoulders in the UPS spectra. (d) Band structure of WOX device without voltage (at thermal equilibrium).
