Journal Article resistive switching neuromorphic computing Comment Letter Monte Carlo simulations RRAM Review adjustable photoconductivity analogue switching arithmetic deep neural network training deep neural networks domain walls heterosynaptic plasticity illumination in-memory computing information demodulating intensity of the magnetization iodine vacancy ion migration magnetoelectric effect memristive switching memristive systems memristors mixed precision training nanomagnetism non-volatile memory organic-inorganic halide perovskite physically evolving networks