MAGNETIZATION OF FE3O4/MGO MULTILAYERS STUDIED WITH MOSSBAUER SPECTROSCOPY

The magnetic behavior and structure of Fe3O4/MgO multilayers have been investigated with Mossbauer spectroscopy in field, magnetization measurements, and scanning tunneling microscopy. It is shown that detailed structural knowledge of the size of the structural domains and the width of the antiphase boundaries are indispensable in understanding the magnetization behavior of the films and the contradictory results reported in the literature.