4.6 Article

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

Journal

PHYSICAL REVIEW B
Volume 105, Issue 17, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.105.174404

Keywords

-

Funding

  1. Pioneer and Leading Goose R&D Program of Zhejiang Province [2022C01053]
  2. National Natural Science Foundation of China [11874059, 12174405]
  3. Ningbo Key Sci-entific and Technological Project [2021000215]
  4. Zhejiang Provincial Natural Science Foundation [LR19A040002]
  5. Beijing National Laboratory for Condensed Matter Physics [2021000123]
  6. European Union?s Horizon 2020 Research and Innovation Program [881603]

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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.
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.

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