Multiferroic materials based on transition-metal dichalcogenides: Potential platform for reversible control of Dzyaloshinskii-Moriya interaction and skyrmion via electric field

Exploring novel two-dimensional multiferroic materials that can realize electric-field control of twodimensional magnetism has become an emerging topic in spintronics. Using first-principles calculations, we demonstrate that nonmetallic bilayer transition-metal dichalcogenides can be an ideal platform for building multiferroics by intercalated magnetic atoms. Moreover, we unveil that with Co intercalated bilayer MoS2, Co(MoS2)2, two energetically degenerate states with opposite chirality of Dzyaloshinskii-Moriya interaction are the ground states, indicating electric-field control of the chirality of topological magnetic objects such as skyrmions can be realized in this type of materials by reversing the electric polarization. These findings pave the way for electric-field control of topological magnetism in two-dimensional multiferroics with intrinsic magnetoelectric coupling.

Automated summary

Using first-principles calculations, it was found that nonmetallic bilayer transition-metal dichalcogenides can serve as an ideal platform for building two-dimensional multiferroics, and electric-field control of the chirality of topological magnetic objects can be achieved in this type of materials.