Angular dependence of magnetization reversal in /spl gamma/-Fe/sub 2/O/sub 3/ single particles: An experimental and modelling study

The switching field for isolated /spl gamma/-Fe/sub 2/O/sub 3/ magnetic particles has been investigated as a function of the applied field angle both experimentally and numerically. Micromagnetic simulations for a typical measured particle with cubic crystalline directions of <100> and <110> with respect to its long axis were compared directly with experimental results. At large applied field angles, the agreement between experimental results and numerical simulations was poor. However, at the smaller applied field angles the simulations gave reasonable agreement with the experimental results.