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Paper   IPM / Physic / 16874
School of Physics
  Title:   Magnetic domain wall dynamics under external electric field in bilayer CrI$_3$
  Author(s): 
1.  S. Izadi Vishkayi
2.  R. Asgari
  Status:   Published
  Journal: Phys. Rev. B
  Vol.:  105
  Year:  2022
  Pages:   235424
  Supported by:  IPM
  Abstract:
Motivated by manipulating the magnetic order of bilayer CrI$_3$, 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 CrI$_3$, low-temperature (LT) and high-temperature (HT) phases, are obtained by solving the Landau-Lifshitz-Gilbert equation. We show that the magnetic texture is stacking-dependent in bilayer CrI$_3$ 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 data storage in the modern generation of spintronic devices working on magnetic domain engineering.

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