Highly uniform current distributions of high resistance state (HRS) and low resistance state (LRS), low 0.6 pJ switching energy, fast 30 ns switching speed, and good 10 6 cycling endurance are achieved in Ni/GeO x/Ta 2O 5-yN y/TaN resistive random access memory (RRAM) devices. Such good performance is attributed to nitrogen-related acceptor level in Ta 2O 5- yN y for better hopping conduction, which leads to forming-free resistive switching and low self-compliance switching currents.
- Hopping conduction
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering
- Materials Chemistry