Hysteresis loops and transition shapes during recording

Abstract

Abstract-Hysteresis loop shapes corresponding to particular recorded transition shapes are calculated self-consistently. It is found that the closer a ramp function comes to the shape of the transition, the squarer the hysteresis loop that is needed.

Dynamic dependence to domain wall propagation through artificial spin ice

“…The magnetisation reversal combines multiple reversal processes which can be modelled as a summation of tanh functions. 29 The lines in figure 3 show a model fit to the data where each transition is parameterised by a reversal field, the relative change in magnetisation and a parameter representing the shape of that transition. The quasi-static reversal fields are symmetric with increasing and decreasing field and share fitting parameters.…”