一个基于高氧的memristor:在原子结构进化中的突出的电阻切换性能和机制
Jing-Yuan Tsai1, Jui-Yuan Chen2, Chun-Wei Huang3
1Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan.
Advanced materials (Deerfield Beach, Fla.)
|June 28, 2023
概括
高氧化物 (HEO) 在电阻随机存储器 (RRAM) 应用中显示出前景. 这项研究揭示了在RRAM运行过程中HEOs的结构转变,导致了卓越的设备性能.
科学领域:
- 材料科学 材料科学 材料科学
- 固态电子 固态电子
- 纳米技术纳米技术
背景情况:
- 高氧化物 (HEO) 具有独特的特性,包括出色的电化学性能和循环稳定性.
- 在电阻随机存储器 (RRAM) 设备中HEO的潜力仍未得到充分探索,对其切换机制的理解有限.
研究的目的:
- 研究一种新型高氧化物的电阻切换特性和机制.
- 在RRAM运行条件下探索HEOs的结构演变.
主要方法:
- 在Nb:STO基底上,HEO (Cr,Mn,Fe,Co,Ni) 3O4与螺旋结构的表面增长.
- 用于RRAM测试的Pt/HEO/Nb:STO设备的制造.
- 使用传输电子显微镜 (TEM),扫描传输电子显微镜 (STEM),X射线光电子光谱 (XPS) 和电子能量损失光谱 (EELS) 的高级表征.
主要成果:
- 该HEO材料表现出异常的电阻切换特性,包括高开/关比 (~10^5),强大的耐用性 (>4550周期) 和长时间的保留时间 (>10^4秒).
- 结构分析显示,在电阻切换操作后,特定区域的结构从旋转变为岩盐结构.
- 特定元素的价值状态变化被确定为驱动观察到的电阻切换行为的关键因素.
结论:
- 高氧化物是下一代RRAM设备的有希望的材料.
- 观察到的结构和元素价值变化对于理解和优化基于HEO的RRAM性能至关重要.
- 对高等教育机构的进一步研究可能会导致非易失性内存技术的进步.
相关概念视频
01:25MOS Capacitor
853
A Metal-Oxide-Semiconductor (MOS) capacitor is a fundamental structure used extensively in semiconductor device technology, particularly in the fabrication of integrated circuits and MOSFETs (metal-oxide-semiconductor field-effect transistors). The MOS capacitor consists of three layers: a metal gate, a dielectric oxide, and a semiconductor substrate.
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
853
01:22MOSFET: Enhancement Mode
391
Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the larger family of metal-oxide Semiconductor Field-Effect Transistors (MOSFETs). They are available in two types: p-channel and n-channel, each tailored to specific polarity operations.
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...
391
01:17Characteristics of MOSFET
425
Metal-oxide-semiconductor field-effect Transistors, or MOSFETs, play a critical role in electronic circuits. They are primarily utilized for amplifying and switching signals.
Various vital parameters influence their functionality, which is crucial for theory and electronics applications. First, channel dimensions, precisely length, and width, are pivotal. The size of these channels affects the transistor's ability to carry current and switching speeds; shorter channels typically enable...
Various vital parameters influence their functionality, which is crucial for theory and electronics applications. First, channel dimensions, precisely length, and width, are pivotal. The size of these channels affects the transistor's ability to carry current and switching speeds; shorter channels typically enable...
425