Micromagnetic calculations in Ba-ferrite small particles configuration energy during the magnetisation reversal

Abstract We have made numerical simulations of Ba-ferrite single particles of different sizes but with the same prismatic shape. We have found the magnetisation reversal mechanism as well as the configuration energy during this process to depend strongly on the size of the particle. This dependence has the form KVφ ( V ) where φ ( V ) is a decreasing function of the particle volume V .