期刊
APPLIED PHYSICS LETTERS
卷 96, 期 19, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3428779
关键词
copper; electrical conductivity transitions; electrical resistivity; metal-insulator boundaries; random-access storage; silicon compounds; switching; tunnelling
资金
- CNRS
- CEALETI
Resistance switching in Cu/SiO2-based conductive-bridging random access memories is studied under voltage and current-driven modes. These two modes are used to study memory cycling and time-dependent switching. Voltage-current (V-I) cycles (logarithmic current ramp) are compared to I-V cycles (linear voltage ramp). The Off-On transition in V-I cycles is governed by device capacitance. The Off-On switching time (in the 10(-1)-10(3) s range) was studied under constant voltage and constant current stresses. The switching time varies as exp(V-0/V) and as 1/I. Switching kinetics is discussed considering a Fowler-Nordheim tunneling injection law and a field-induced nucleation theory.(C) 2010 American Institute of Physics. [doi:10.1063/1.3428779]
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