多相重置诱导了Ta/HfO2/RuO2记忆器的可靠的双模式电阻切换
Dong Hoon Shin1, Hyungjun Park1, Néstor Ghenzi1,2
1Department of Materials Science and Engineering and Inter-University Semiconductor Research Center, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea.
ACS applied materials & interfaces
|March 21, 2024
概括
这项研究介绍了无电成型的Ta/HfO2/RuO2记忆装置. 这些设备能够实现数字二进制交换和模拟8位精度,用于在memristive数组中的混合信号处理.
科学领域:
- 材料科学 材料科学 材料科学
- 电气工程 电气工程
- 纳米技术 纳米技术
背景情况:
- 记忆式横条数组需要先进的设备级切换来处理混合信号的数据.
- 现有的记忆器件通常需要电成形步骤,限制了它们的实际应用.
- 在单一的内存设备中实现数字和模拟功能是一个关键的挑战.
研究的目的:
- 为了研究无电成型的Ta/HfO2/RuO2电阻开关装置.
- 为了证明这些设备对于数字和模拟应用的可行性.
- 阐明使双模式操作成为可能的机制.
主要方法:
- /HfO2/RuO2装置的制造和表征.
- 结构和电气分析,以了解电阻开关机制.
- 使用多相重置行为通过优化脉冲应用来切换模式.
主要成果:
- 对Ta/HfO2/RuO2设备进行了无电成型操作的证明.
- 实现了稳定的二进制切换 (数字模式) 和精确的8位导电量调制 (256级,模拟模式).
- 通过深入分析和对不同电极结构的比较,验证了拟议的机制.
结论:
- /HfO2/RuO2装置具有适合混合信号处理的多功能切换特性.
- 多相重置行为对于启用双数字和模拟功能至关重要.
- 这些设备是下一代记忆阵列的有希望的候选者.
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