journal article·2020-05-01Open access

Realization of fast switching speed and electronic synapse in Ta/TaOx/AlN/Pt bipolar resistive memory

Gang Cao, Xiaobing Yan, Jingjuan Wang, Zhenyu Zhou, Jianzhong Lou, Kaiyou Wang

AIP Advances· Volume 10· Issue 5

Abstract

Resistive random-access memory plays a key role in non-volatile and neuromorphic artificial electronic devices. In this work, we fabricated Ta/TaOx/AlN/Pt resistive memory devices with the inserted AlN layer to improve the performance. The devices have better stability, lower threshold voltage (≈0.37 V), longer retention time (>104 s), and faster switching speed (9 ns) than those without the AlN film layer. More importantly, when different pulse parameters were applied, two phenomena, abrupt jumps in conductance and gradual change in conductance, were obtained. Furthermore, the biological synaptic functions were simulated, including the spiking-time-dependent plasticity and the paired-pulse facilitation. The Ta/TaOx/AlN/Pt resistive memory devices offer promising features; hence, they are good candidates for next-generation electronic devices for chip systems.
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Research context

OpenAlex topics: Advanced Memory and Neural Computing · Ferroelectric and Negative Capacitance Devices · Neuroscience and Neural Engineering

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences 1 , Beijing 100083, People’s Republic of China

National-Local Joint Engineering Laboratory of New Energy Photovoltaic Devices, Key Laboratory of Digital Medical Engineering of Hebei Province, College of Electron and Information Engineering, Hebei University 2 , Baoding 071002, People’s Republic of China

Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences 3 , Beijing 100049, People’s Republic of China

Funding

Training and Introduction of Hight-Level Innovative Talents of Hebei University · The Hundred Persons Plan of Hebei Province · The Supporting Plan for 100 Excellent Innovative Talents in Colleges and Universities of Hebei Province · The National Science Foundation of China

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