在2D hBN平台上的神经形态网络中实现雪崩关键性
Ankit Rao1, Sooraj Sanjay1, Vivek Dey1
1Centre for Nano Science and Engineering, Indian Institute of Science, Bengaluru 560012, India. pnukala@iisc.ac.in.
Materials horizons
|September 23, 2023
概括
这项研究展示了一个新的2D材料平台,使用六边形化和银,创建两个不同的类似大脑的神经网络. 这些网络表现出自我组织的关键性,并且可以根据电压调整为低功耗的信息处理.
科学领域:
- 材料科学 材料科学 材料科学
- 神经科学是一个神经科学.
- 凝聚物质物理学 凝聚物质物理学
背景情况:
- 类似于大脑的计算需要分析低功耗的噪音数据.
- 大脑中的复杂神经网络通过关键动态实现了这一目标.
- 现有的人工系统很难有效地复制这些特性.
研究的目的:
- 展示一种能够容纳两个独立的,自我组织的神经网络的新型二维材料系统.
- 研究这些人工网络中的类似大脑的行为,包括自我组织的关键性 (SOC).
- 探索CMOS兼容的低功耗信息处理的潜力.
主要方法:
- 制造与银 (Ag) 接触的多层六角化 (hBN) 薄膜.
- 在高电阻状态 (HRS) 和低电阻状态 (LRS) 之间的双极电阻切换的表征.
- 时间雪崩动态,权力规律缩放和远程时间相关性分析.
主要成果:
- hBN/Ag系统托管了两个自我组装的网络,表现出自我组织的关键性 (SOC).
- 电阻切换发生在道连接网络 (HRS) 和光纤网络 (LRS) 之间.
- 这两个网络状态都显示了SOC特有的时间雪崩动态,并且可以调节电压.
结论:
- 首次在一个单一的CMOS兼容的二维材料平台上实现了两个不同的神经网络.
- 展示的系统模仿了类似于大脑的信息处理,耗电量低.
- 这项工作为神经形态计算硬件开辟了新的途径.
相关概念视频
Neural Circuits
1.3K
Neural circuits and neuronal pools are two of the main structures found in the nervous system. Neural circuits are networks of neurons that work together to carry out a specific task or process. They consist of interconnected neurons and glial cells, which provide structural and metabolic support.
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
1.3K
The Role of Ion Channels in Neuronal Computation
3.2K
A postsynaptic neuron usually receives numerous impulses from several other presynaptic neurons. The axon hillock of the postsynaptic neuron integrates all these signals and determines the likelihood of firing an action potential.
Sometimes a single EPSP is strong enough to induce an action potential in the postsynaptic neuron. However, multiple presynaptic inputs must often create EPSPs around the same time for the postsynaptic neuron to be sufficiently depolarized to fire an action potential....
Sometimes a single EPSP is strong enough to induce an action potential in the postsynaptic neuron. However, multiple presynaptic inputs must often create EPSPs around the same time for the postsynaptic neuron to be sufficiently depolarized to fire an action potential....
3.2K
Neuronal Communication
995
Neurons, the fundamental units of the brain and nervous system, communicate through complex electrochemical signals that underpin all cognitive and bodily functions. This communication is primarily facilitated by a process involving the generation and propagation of an action potential along the axon of the neuron. When the internal electrical charge of a neuron surpasses a certain threshold, an action potential is triggered. This rapid change in voltage travels swiftly along the axon to the...
995


