Conduction Behavior of V-SrZrO3 Thin Film Showing Resistive Switching

Abstract

This paper examines the electrical properties of V-doped SrZrO 3 sputtered films showing bistable on/off resistive switching. The temperature dependence of dc sweep I -V data in the range of 25-100 • C implies the prominent role played by the off-state conduction in determining the R-switch ratio. The defects in off-state are investigated via FrenkelPoole relation and the associated trap energy extraction. It is found that the oxygen vacancies are the possible major defects in off-state and are verified by the treatment of N 2 and O 2 annealing ambience hereafter. The nearly unchanged currents suggest the relatively more stable nature in on-state, which is consistent with the following findings: 1) the frequently observed I -V jiggle during on to off switching, 2) successful forming only found for sweep direction to on-state, 3) the better thermal disturbance immunity by longer retention for on-state, 4) the shorter pulse width needed to on-state switching for electric pulse induced resistance (EPIR) effect.

Resistance Transition in NiO Thin Film and Its Temperature Dependence

“…The much larger power at reset indicates the more stable nature for onstate conduction. The I RESET instability is a consequence of the filament rupture, which is frequently noticed as the I-V jiggle during reset switching for bipolar BRS perovskite oxides [7].…”

“…Chun-Hung Lai et al in on-and off-states [7]. The impedance spectroscopy was adopted to analyze the off-state resistance.…”

Resistive Switching and Current Conduction for Thermally Grown NiO Thin Film

“…In this work, the URS property of NiO film was examined, including switching voltage polarity and instability. The temperature dependence of the current-voltage data in full-log scale was examined to probe the transport nature, and stability in on/off conduction was compared [6,7]. The impedance spectroscopy was adopted to analyze the off-state resistance.…”