Interface and Doping Engineering of HfO2 Based Multi-Level RRAM: Towards Synaptic Simulation for Neuromorphic Computation. - Sourav Roy; Qiang Wang 025; Yunkun Wang; Yijun Zhang 007; Shijie Zhai; Wei Ren; Zuo-Guang Ye; Gang Niu 006 (ICICDT, 2019)