Epitaxial Fe3O4(001) thin films (10 to 20nm thick) grown on MgO substrates were

characterized using low-energy electron diffraction, conversion electron Mössbauer

spectroscopy and investigated using Rutherford back-scattering spectrometry, channelling and X-ray reflectometry. The Mg out-diffusion from the MgO

substrate into the film was observed for the directly-deposited Fe3O4/MgO(001)

films. For the Fe3O4/Fe/MgO(001) films, the Mg diffusion was prevented by the Fe

layer and the surface layer was always a pure Fe3O4 layer. Annealing and ion beam

mixing induced a very large interface zone having a spinel and/or wustite formula

in the Fe3O4-on-Fe film system.

Thermal and Irradiation Induced Interdiffusion in Magnetite Thin Films Grown on

Magnesium Oxide (001) Substrates. N.T.H.Kim-Ngan, A.G.Balogh, J.D.Meyer,

J.Brötz, M.Zając, T.Ślęzak, J.Korecki: Surface Science, 2009, 603[9], 1175-81