Kinetics of magnetization switching in a 1-D system-size distribution of unswitched domains
We construct the evolution equation of the size distribution function of the unswitched domains of a model of a 1-D system in a switching field, and solve it as an initial value problem. As the time goes on, the distribution approaches to the “fixed point”, which is the exponential distribution. This feature is unaffected by the finiteness of the critical radius of nucleation.