挥发性和非挥发性电阻切换在横向的2D二硫化物基记忆装置中
Sofía Cruces1, Mohit D Ganeriwala2, Jimin Lee1
1Chair of Electronic Devices, RWTH Aachen University, Otto-Blumenthal-Str. 25, 52074 Aachen, Germany.
Nano letters
|August 7, 2025
概括
研究人员使用二硫化物记忆器开发了新的神经形态电子设备. 这些设备表现出挥发性和非挥发性电阻切换,模仿大脑启发的计算的突触功能.
科学领域:
- 神经形态计算是一种神经形态计算.
- 材料科学 材料科学 材料科学
- 电子设备 电子设备
背景情况:
- 由大脑启发的计算需要模拟生物功能的电子设备.
- 二维材料对先进的神经形态应用有前途.
研究的目的:
- 研究横向记忆器中挥发性和非挥发性电阻切换的共存.
- 探索用于神经形态应用的二硫化物与银电极.
主要方法:
- 使用二硫化和银电极制造横向记忆器.
- 直接电流测量和脉冲刺激用于突触功能分析.
- 在现场传输电子显微镜研究离子迁移.
主要成果:
- 设备显示了不同的切换电压,用于挥发性 (~0.16V) 和非挥发性 (~0.52V) 操作.
- 证明了重要的突触功能:配对脉冲促进和短期/长期可塑性.
- 通过 in situ TEM,通过二硫化物观察到横向的银离子迁移.
结论:
- 带有银电极的二硫化侧面记忆器表现出双电阻切换行为.
- 这些设备成功模拟了关键的突触功能,这对于神经形态计算至关重要.
- 银离子迁移机制通过实验和建模方法得到证实.
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