It was noted that CoFe2O4/Fe3O4 bilayers represented an unusual exchange-coupled

system whose properties were due to the nature of the oxide-oxide super-exchange

interactions at the interface. Here, the magnetization reversal behavior and

magnetic interface structure were analyzed using various advanced techniques.

Low-temperature magnetization, magnetotransport and polarized neutron

reflectivity measurements suggested that the magnetization configuration at the

bilayer interface imitated that of the antiphase boundary found in spinel ferrite thin

films, thus explaining the unique nature of the magnetic behavior.

Artificial Antiphase Boundary at the Interface of Ferrimagnetic Spinel Bilayers.

A.V.Ramos, S.Matzen, J.B.Moussy, F.Ott, M.Viret: Physical Review B, 2009,

79[1], 014401