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The Dzyaloshinskii–Moriya interaction (DMI) is an antisymmetric exchange interaction that plays a decisive role in the formation of chiral magnetic structures and in the determination of magnetoelectric properties. This study investigated the impact of an external voltage on the magneto-static surface waves in a Au/Fe/MgO multilayer. Spin waves were excited and detected using two coplanar waveguides and controlled by an external DC voltage. The DC bias voltage dependence of the resonant frequency in the spin waves revealed that the voltage effect has both directionally symmetric and asymmetric components, signifying voltage control of both interfacial magnetic anisotropy and interface-DMI.
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Nawaoka et al. (2015) studied this question.
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