Author:
Wu Wenkai,Verkhovtsev Alexey V.,Pavloudis Theodoros,Solov’yov Andrey V.,Palmer Richard E.
Abstract
AbstractAtomic cluster-based networks represent a promising architecture for the realization of neuromorphic computing systems, which may overcome some of the limitations of the current computing paradigm. The formation and breakage of links between the clusters are of utmost importance for the functioning of these computing systems. This paper reports the results of molecular dynamics simulations of synapse (bridge) formation at elevated temperature and thermal breaking processes between 2.8 nm-sized Au1415 clusters deposited on a carbon substrate, a model system. Crucially, we find that the bridge formation process is driven by the diffusion of gold atoms along the substrate, no matter how small the gap between the clusters themselves. The complementary simulations of the bridge breaking process reveal the existence of a threshold bias voltage to activate bridge rupture via Joule heating. These results provide an atomistic-level understanding of the fundamental dynamical processes occurring in neuromorphic cluster arrays.
Publisher
Springer Science and Business Media LLC
Subject
Electrical and Electronic Engineering,General Materials Science,Condensed Matter Physics,Atomic and Molecular Physics, and Optics
Reference72 articles.
1. Waldrop, M. M. The chips are down for Moore’s law. Nature 2016, 530, 144–147.
2. World Economic Forum. A New Circular Vision for Electronics, Time for a Global Reboot [Online]. 2019. https://www.weforum.org/reports/a-new-circular-vision-for-electronics-time-for-a-global-reboot. (accessed Feb 14, 2023)
3. Nawrocki, R. A.; Voyles, R. M.; Shaheen, S. E. A mini review of neuromorphic architectures and implementations. IEEE Trans. Electron Devices 2016, 63, 3819–3829.
4. Jaeger, H. Towards a generalized theory comprising digital, neuromorphic and unconventional computing. Nroromorph. Comput. Eng. 2021, 1, 012002.
5. Bullmore, E.; Sporns, O. The economy of brain network organization. Nat. Rev. Neurosci. 2012, 13, 336–349.
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献