Interaction Field Distribution in Longitudinal and Perpendicular Structured Particulate Media

Accurate evaluation of interactions in modern structured particulate ferromagnetic media is an actual problem of technological interest. In this paper, we present the results of a systematic study of perpendicular and longitudinal networks of Ising-type magnetic entities. We show the complex structure of interactions in such systems and their strong state dependence. The first-order reversal curves (FORC) diagram method in physical and operative planes is discussed. Even if the FORC diagram is only a picture of a moving distribution of interactions, in some cases the dynamic image of the interactions can be reconstructed from the static FORC diagram