Abstract
New operation regimes of single and coupled oscillators in circuits based on planar VO2 switches have been studied. The phenomenon of bistability is discovered, which consists in controlled switching of self-sustained oscillations by external pulses, which is a promising basis for the creation of oscillatory memory cells and implementation of pulse coupling regimes in artificial neural networks (ANNs). The duration of switch-on and switch-off pulses is no less that ~20 μs and 30 ms, respectively. It is established that the region of threshold voltages for bistable switching in coupled oscillators is much wider than in a single oscillator and the hysteresis width in the former case can reach 2 V. A regime of initiation of switching packets has been observed that models the ANN packet activity.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
J. Heaton, Artificial Intelligence for Humans, Vol. 3: Deep Learning and Neural Networks (CreateSpace Independent, North Charleston, USA, 2015).
C. M. Bishop, Neural Network Pattern Recognition (Clarendon, Oxford, 1995).
J. J. Hopfield, Proc. Natl. Acad. Sci. 79, 2554 (1982).
S. H. Strogatz, Phys. D: Nonlin. Phenom. 143, 1 (2000).
S. Kaka, M. R. Pufall, W. H. Rippard, et al., Nature 437, 389 (2005).
N. Shukla et al., Sci. Rep. 4, 4964 (2014).
A. A. Sharma, J. A. Bain, and J. A. Weldon, IEEE J. Explor. Solid-State Comput. Dev. Circuits 1, 58 (2015).
P. P. Boriskov, A. A. Velichko, A. L. Pergament, G. B. Stefanovich, and D. G. Stefanovich, Tech. Phys. Lett. 28, 406 (2002).
M. D. Pickett, G. Medeiros-Ribeiro, and R. S. Williams, Nat. Mater. 12, 114 (2013).
V. V. Klin’shov and V. I. Nekorkin, Phys. Usp. 56, 1217 (2013).
A. Pergament, G. Stefanovich, and A. Velichko, Phase Trans. (2016). doi 10.1080/01411594.2016.1201818
A. A. Velichko, G. B. Stefanovich, A. L. Pergament, and P. P. Boriskov, Tech. Phys. Lett. 29, 435 (2003).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © M.A. Belyaev, V.V. Putrolaynen, A.A. Velichko, 2016, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2016, Vol. 42, No. 24, pp. 41–48.
Rights and permissions
About this article
Cite this article
Belyaev, M.A., Putrolaynen, V.V. & Velichko, A.A. The bistability phenomenon in single and coupled oscillators based on VO2 switches. Tech. Phys. Lett. 43, 38–41 (2017). https://doi.org/10.1134/S1063785016120154
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063785016120154