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Paper   IPM / Physic / 16874
School of Physics
  Title:   Magnetic domain wall dynamics under external electric field in bilayer CrI3
1.  S. Izadi Vishkayi
2.  R. Asgari
  Status:   Published
  Journal: Phys. Rev. B
  Vol.:  105
  Year:  2022
  Pages:   235424
  Supported by:  IPM
Motivated by manipulating the magnetic order of bilayer CrI3, we carry out microscopic calculations to find the magnetic order and various magnetic domains of the system in the presence of an electric field. Making use of density functional simulations, a spin model Hamiltonian is introduced consisting of isotropic exchange couplings, Dzyaloshinskii-Moriya (DM) interaction, and on-site magnetic anisotropy. The spin dynamics of two well-known states of bilayer CrI3, low temperature (LT) and high temperature (HT) phases, are obtained by solving the Landau-Lifshitz-Gilbert equation. We show the magnetic texture is stacking-dependent in bilayer CrI3 and stable magnetic domains can appear in the HT stack which are tunable by external electric and magnetic fields. Therefore, we suggest that the HT phase represents a promising candidate for storing and erasing information in the modern generation of spintronic devices which work based on magnetic domain engineering.

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