Evaluation of temperature stability of trilayer resistive memories using work-function tuning

A trilayer resistive memory with a low picojoule switching energy shows highly uniform current distribution, fast switching speed of 10 ns, and robust endurance cycling of 106 cycles under high-temperature (343 K) operation. Such good performance is related to high-temperature stable Ni electrode, fast electron hopping via nanocrystallized anatase TiO₂, and nonuniform electric-field distribution to dilute cycling stress. The evaluation of thermal stability is mandatory for the application of reliable high-density three-dimensional nonvolatile memory.