Dresden 2017 – wissenschaftliches Programm

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DS: Fachverband Dünne Schichten

DS 38: Focussed Session: Memristive Devices for Neuronal Systems I

DS 38.3: Vortrag

Donnerstag, 23. März 2017, 10:30–10:45, CHE 89

Emulation of neural synchrony with memristive devices — •Marina Ignatov, Martin Ziegler, Mirko Hansen, and Hermann Kohlstedt — AG Nanoelektronik, Christian-Albrechts-Universität zu Kiel, Germany

Conscious and perception are without doubt one of the most fascinating functionalities of the human brain and results from massive parallel computing in a huge self-organizing dynamical neural network. Neural synchrony is an elegant concept which tries to explain the underlying computing scheme by using dynamical network behaviours. In this talk we show that memristive devices allow a new degree of freedom to the concept of neural synchrony: a local memory which supports a transient connectivity. By using a 4-inch full device technology electrochemical metallization (ECM) cells with the layer sequence Ag/TiO_2−x/Al are fabricated. Those devices are used to couple self-sustained van der Pol oscillators in an electronic circuit. As a result an autonomous frequency adaptation and phase locking is observed. The underlying circuit and device requirements and their impact to neuromorphic computing are discussed in this talk.

Financial support by the German Research Foundation through FOR 2093 is gratefully acknowledged.

[1] M. Ignatov et al., Appl. Phys. Lett. 108(8), 084105 (2016)