Direct numerical calculation of interactive effects among Stoner-Wohlfarth particles is presented. Hysteresis behavior of both individual grains and the bulk sample are altered significantly by magnetic interaciton between the individual grains, causing clstered single-domain particles to behave like multi-domain particles. Reversible interactive effects and tangential interactive fields are inportant and should not be neglected in future modeling. ¿American Geophysical Union 1990 |