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arXiv · 2202.01394

Magnetic domain wall dynamics under external electric field in bilayer CrI$_3$

Sahar Izadi Vishkay·Reza Asgari
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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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Sahar Izadi Vishkay, Reza Asgari. 2022-06-16. Magnetic domain wall dynamics under external electric field in bilayer CrI$_3$. https://doi.org/10.1103/physrevb.105.235424

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