构建一个耗尽区域宽度调制模型,并在PN异构结构设备中实现内存特征
Xing Guo1, Xinmiao Li1, Ruixiao Wang1
1State Key Laboratory of High Performance Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University, Changsha, 410000, China. zhangl207@csu.edu.cn.
Nanoscale
|August 6, 2024
概括
这项研究引入了一种新的耗尽区域宽度调制模型,用于memristive和memcapacitive设备. 这种模型可以更好地控制记忆特征,并证明PN异构结构中的突触功能.
科学领域:
- 材料科学 材料科学 材料科学
- 凝聚物质物理学 凝聚物质物理学
- 电子工程 电子工程
背景情况:
- 记忆系统为非易失性记忆提供了潜力,但在可控制性和物质导电性依赖性方面面临挑战.
- 现有的模型很难完全解释和控制记忆器的复杂行为.
研究的目的:
- 为记忆性和记忆容量性行为提出一个新的枯竭区域宽度调制模型.
- 为了证明特定的异构结构设备中memristive和memcapacitive属性的共存.
- 探索这些设备模拟突触功能的潜力.
主要方法:
- 对p-CuAlO2/n-ZnO,p+-Si/n-ZnO和p-NiO/n-ZnO异构装置的制造和表征.
- 应用强大的外部电场来诱导离子和电荷载体迁移.
- 对耗尽区域宽度,导电率和电容的变化进行分析.
主要成果:
- 在制造的异构结构中证明了记忆性和记忆容量性行为的共存.
- 通过调节空缺度和耗尽区域宽度来调节设备导电性和电容性的能力.
- 精确地模仿了基本的突触功能,包括尖峰时间依赖的可塑性 (STDP).
结论:
- 拟议的耗尽区域宽度调制模型有效地解释了memristive和memcapacitive特征.
- 对于开发先进的memristors和memcapacitors,PN异构结构显示出有前途的可能性.
- 这些设备为神经形态计算中的突触模拟提供了新的机会.
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