Abstract More-versatile memory is strongly desired for end-users to protect their information in the era. In particular, bit-level switchable memory, from rewritable read-only function, allows prevent any important data being tampered with. However, no such has been reported. We demonstrated function can be converted into by applying a sufficiently large current pulse U-shaped domain-wall which...

We propose a time-delay oscillator with Mackey-Glass nonlinearity based on pinned magnetic domain wall in thin film nanostrip. Through spin transfer torques, electric currents applied along the strip cause to deform and displace away from geometrical pinning site, which can be converted into nonlinear function through suitable choice of readout. This readout serves as delay signal, is subsequen...