Fig. 4: Spike-dependent plasticity of the non-monotonic neuron.
From: Artificial non-monotonic neurons based on nonvolatile anti-ambipolar transistors
a Peak separation with VGG round sweeping with increasing range |VGG|max. b Peak shifting after VGG spikes with increasing amplitudes were applied. Inset shows the postsynaptic IDS changing at VDS = 1 V and VGG = 0 V. c Retention of peak and valley current levels over 10,000 s after VGG = + 10 V/ −15 V, respectively. d Spike amplitude-dependent plasticity of the non-monotonic neuron. The initial state is reset by the VGG pulse with an amplitude of −15 V and a width of 10 ms. e Postsynaptic IDS evolution under VGG pulse train with different pulse amplitudes in d). f Spike amplitude-width plasticity of the non-monotonic neuron. g Postsynaptic IDS evolution under VGG pulse train with different pulse settings. All postsynaptic IDS values are measured at VDS = 1 V, VGG = 0 V. The spike trains including 30 pulses.
