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Updated: Dec 27, 2025

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Published on: October 23, 2018
Negative differential resistance effect in resistive switching devices based on h-LuFeO3/CoFe2O4 heterojunctions
Xinxin Ran1, Pengfei Hou2, Jiaxun Song1
1School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, Hunan, China. houpf@xtu.edu.cn jbwang@xtu.edu.cn.
Abstract:
The negative differential resistance (NDR) effect enables multilevel storage and gradual resistance modulation in resistive switching (RS) devices to be achieved. However, the poor reproducibility of NDR is the obstacle that restricts their application because the appearance of the NDR effect in RS devices is usually accidental or unstable at room temperature. In this report, we demonstrate a polarization and interfacial defect modulated NDR effect in h-LuFeO3/CoFe2O4 heterojunction-based RS devices; especially, the NDR is reproducible after hundreds of cycles at room temperature. This research provides an effective way for realizing the reproducible NDR effect in ferroelectric RS devices, and it may promote the development and application of RS devices with the NDR effect.
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