Dynamic Behaviors and Training Effects in TiN/Ti/HfO x /TiN-Nanolayered Memristors with Controllable Quantized Conductance States: Implications for Quantum and Neuromorphic Computing Devices

Controllable quantized conductance states of TiN/Ti/HfO x /TiN memristors are realized with great precision through a pulse-mode reset procedure, assisted with analytical differentiation of the conditions of the set procedure, which involves critical monitoring of the measured bias voltage. An intri...

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Bibliographic Details
Published in:ACS applied nano materials 2021-10, Vol.4 (10), p.11296-11304
Main Authors: Peng, Min-Hsuan, Pan, Ching-Yang, Zheng, Hao-Xuan, Chang, Ting-Chang, Jiang, Pei-hsun
Format: Article
Language:English
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Summary:Controllable quantized conductance states of TiN/Ti/HfO x /TiN memristors are realized with great precision through a pulse-mode reset procedure, assisted with analytical differentiation of the conditions of the set procedure, which involves critical monitoring of the measured bias voltage. An intriguing training effect that leads to faster switching of the states is also observed during the operation. Detailed analyses of the low- and high-resistance states under different compliance currents reveal a complete picture of the structural evolution and dynamic behaviors of the conductive filament in the HfO x layer. This study provides a closer inspection on the quantum-level manipulation of nanoscale atomic configurations in the memristors, which helps to develop essential knowledge about the design and fabrication of the future memristor-based quantum devices and neuromorphic computing devices.
ISSN:2574-0970
2574-0970
DOI:10.1021/acsanm.1c02969