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Structure and magnetism of Fe/MgO/Fe multilayered nanosystems |
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| Authors: | E M Yakunina V I Bodnarchuk V V Proglyado T A Chernyshova E A Kravtsov |
| Institution: | 1. Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, Yekaterinburg, 620990, Russia 3. Joint Institute for Nuclear Research, Dubna, 141980, Russia 2. Ural Federal University, Yekaterinburg, 620002, Russia |
| Abstract: | The dependences of the structural and magnetic properties of a nanoscale Fe/MgO/Fe planar system on the thickness of the dielectric MgO layer are reported. X-ray crystallographic analysis reveals a high-quality layered structure with abrupt interlayer boundaries and a continuous MgO-insulator layer. Fourth-order magnetocrystalline anisotropy is found in the synthesized structures. A new way to provide antiferromagnetic ordering in the nanostructure is proposed by applying a magnetic field to the investigated structure at an angle of 22° with respect to the easy magnetization axis. In this case, the antiferromagnetic ordering of magnetic moments is established in the field range of 20–50 Oe. |
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