Table 1 The nonlinear parameters of long-term potentiation/depression (LTP/LTD), asymmetry between LTP and LTD, and cycle-to-cycle variations of depressive and potentiative GrFeFET synapses

From: Graphene–ferroelectric transistors as complementary synapses for supervised learning in spiking neural network

 

Nonlinear parameter

Asymmetric nonlinearity factor

Cycle-to-cycle variation

Depressive synapse

LTP

4.17

0.11

LTP

0.035

LTD

4.64

LTD

0.063

Potentiative synapse

LTP

2.87

0.5

LTP

0.061

LTD

4.70

LTD

0.027