According to the reference: http://stoner.phys.uaic.ro/forc/the-stoner-wohlfarth-model/2-crossover.html
"One problem of the coherent rotation Stoner-Wohlfarth model is that it is not giving the correct dependence of the critical field on the angle between the easy axis and the applied field direction", as can be seen in the figure the circles in red.
How do you solve this cross-over problem for systems that have Exchange Bias, does it follow the same method of reference or is it different?