TAYLORED MAGNETIC ANISOTROPIES OF IRON ON BATIO_3 AND SRTIO_3 SURFACES WITH ELECTRIC FIELDS: AN AB INITIO STUDY

摘要

With further downscale of electrical devices the capability to control and confine interface properties will be the key issue to realize the full potential of perovskite ferroelectric materials in varistors, field effect devices and non-volatile memories. Magnetic anisotropy energy (MAE), which is the energetic stability of electron spins to align in a certain direction, is the most important magnetic property for denser device integration. Magnetism of pseudomorphically grown Fe on the surfaces of ferroelectric materials has attracted attention due to its high magnetic moment and controllable MAE.