Strong spintronic magnetoelectric effect in layered magnetic metamaterial

Abstract

It is shown that external magnetic field or magnetization induces electric polarization of microscopic isolated magnetic/non-magnetic hybrid structures due to the spin-dependent electron redistribution and mutual capacity. The magnetoelectric effect can be very strong, for instance the change of electric polarization reaches $100$ $\mu C/m^2$ at a constant magnetic field of only $1.5$ Tesla in the case of $100$ $÷$ $10$ nanometer structures which tightly fill the space, composing a metamaterial. The effect does not require using exotic compounds. Based on the obtained results we suggest a number of recommendations for future experimental design.

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