Electronic and Magnetic Properties of Mn3O4/Fe3O4 Superlattices
نویسندگان
چکیده
Antiparallel interlayer magnetic coupling between layers of Fe3O4 and Mn3O4 , both ferromagnetic, was reported in a recent study. The interlayer magnetic coupling may be affected by the magnetic property at the interface. In order to understand the interplay between the electronic configuration, the atomic structure and the magnetic property at the interface, we have performed transition metal L2,3-edges x-ray absorption spectroscopy (XAS) and x-ray magnetic circular dichroism (XMCD) measurements on a series of samples. Ferrimagnetic/ferrimagnetic Mn3O4/Fe3O4 superlattices of different thickness were studied. A piece of bulk MnFe2O4 was studied for comparison. Our results indicate the interface can be viewed as a layer of MnFe2O4 compound, which affects magnetic property of the Fe3O4/Mn3O4 superlattices.
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