Figure 5
From: Spintronic reservoir computing without driving current or magnetic field
(a) An example of the time evolution of \(m_{z}\) (black) in the presence of several binary pulses (red). The dotted lines distinguish the input pulse. The pulse width and the first order magnetic anisotropy field are 69 ns and − 430 Oe, respectively, where the STM capacity is maximized. (b) An example of \(m_{z}\) in the presence of a random input. The dots in the inset shows the definition of the nodes \(u_{k,i}\) from \(m_{z}\) during a part of an input pulse. The node number is \(N_{\mathrm{node}}=250\). (c) Examples of the target data \(y_{n,D}^{\prime }\) (red line) and the system output \(v_{n,D}^{\prime }\) (blue dots) of STM task with \(D=1\). (d) Dependence of \([\mathrm{Cor}(D)]^{2}\) on the delay D for STM task. The node number is \(N_{\mathrm{node}}=250\). The inset shows the dependence of the STM capacity on the node number.
