Galvanomagnetic properties of nanosfructures Сu—Fe₃O₄—Мe₂O₃—Fe₃O₄—Cu

Abstract

The study of galvanomagnetic properties of nanostructures Сu—Fe₃O₄—Мe₂O₃—Fe₃O₄—Cu, based on magnetite layers, separated by a streak of rare earth metal oxides Мe₂O₃ (Ме — Y, Ce, Pr, Sm, Eu, Tb, Dy), was summarized. It was shown, that at the layers boundary of Fe₃O₄ and Мe₂O₃ there is magnetice interaction between ions of iron and rare earth metals, that leads to the ordering of magnetic structure of the magnetite surface. This in turn provokes an increasing of tunneling magnetoresistance in nanostructures at them working both on DC, and AC currents.