RT info:eu-repo/semantics/article T1 Variability and power enhancement of current controlled resistive switching devices A1 Vinuesa Sanz, Guillermo A1 García, H. A1 Lendínez, J.M. A1 García-Ochoa, E. A1 González, M.B. A1 Maldonado, D. A1 Aguilera-Pedregosa, C. A1 Moreno, E. A1 Jiménez-Molinos, F. A1 Roldán, J.B. A1 Campabadal, F. A1 Castán Lanaspa, María Helena A1 Dueñas Carazo, Salvador K1 Resistive switching K1 Hafnium oxide K1 Current control K1 Electrical characterization K1 TCM K1 RRAM AB In this work, the unipolar resistive switching behaviour of Ni/HfO2/Si(n+) devices is studied. The structures are characterized using both current and voltage sweeps, with the device resistance and its cycle-to-cycle variability being analysed in each case. Experimental measurements indicate a clear improvement on resistance states stability when using current sweeps to induce both set and reset processes. Moreover, it has been found that using current to induce these transitions is more efficient than using voltage sweeps, as seen when analysing the device power consumption. The same results are obtained for devices with a Ni top electrode and a bilayer or pentalayer of HfO2/Al2O3 as dielectric. Finally, kinetic Monte Carlo and compact modelling simulation studies are performed to shed light on the experimental results. PB ELSEVIER SN 0167-9317 YR 2023 FD 2023 LK https://uvadoc.uva.es/handle/10324/66158 UL https://uvadoc.uva.es/handle/10324/66158 LA spa NO Microelectronic Engineering Volume 276, 1 May 2023, 112008 NO Producción Científica DS UVaDOC RD 12-nov-2024