Fig. 3: Characteristics of the vdW-hybrid synaptic device with respect to various spike conditions.
From: Artificial van der Waals hybrid synapse and its application to acoustic pattern recognition
a Synaptic device schematics including explanation on spike condition. b LTP and LTD curves for 15 cycles and evaluated CCV and RSD (σ/μ) values for the potentiation and depression channels. c–f Extracted symmetricity and dynamic range from the LTP/LTD curves measured under various spike conditions, such as the number of spikes (32–128) (c), the amplitude of spikes (1–5 V) (d), the duration of spikes (10–50 ms) (e), and the frequency of spikes (2–8 Hz) (f).
