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DPG

Berlin 2015 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 90: Phase change / resistive switching (DS with HL)

HL 90.8: Vortrag

Donnerstag, 19. März 2015, 16:45–17:00, H 0111

Emulation of neuronal functionality by using a VO2-based oscillator circuit — •Marina Ignatov, Martin Ziegler, Mirko Hansen, Adrian Petraru, and Hermann Kohlstedt — Nanoelektronik, Technische Fakultät, Christian-Albrechts-Universität zu Kiel, Germany

A negative-differential oscillator circuit based on a vanadium dioxide (VO2) device is presented. The oscillator circuit allows to emulate basic neuronal functionalities, including spike coding. The obtained results are compared to common spiking neuron models. Additionally, a theoretical analysis of the oscillator circuit is used to gain insight into the functionality of the circuit and to give advice for the device development and the implementation of the circuit. In this respect, important requirements for the strongly correlated electron material VO2 are presented and discussed in detail. Further, possible modifications of the oscillator circuit model for a better agreement with neuronal spikes are presented.

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DPG-Physik > DPG-Verhandlungen > 2015 > Berlin