Strain and electric-field control of spin-spin interactions in monolayer CrI${}_3$

Abstract

We investigate the impact of mechanical strains and a perpendicular electric field on the electronic and magnetic ground-state properties of two-dimensional monolayer CrI${}_3$ using density functional theory. We propose a minimal spin model Hamiltonian, consisting of symmetric isotropic exchange interactions, magnetic anisotropy energy, and Dzyaloshinskii-Moriya (DM) interactions, to capture most pertinent magnetic properties of the system. We compute the mechanical strain and electric field dependence of various spin-spin interactions. Our results show that both the amplitudes and signs of the exchange interactions can be engineered by means of strain, while the electric field affects only their amplitudes. However, strain and electric fields affect both the directions and amplitudes of the DM vectors. The amplitude of the magnetic anisotropy energy can also be substantially modified by an applied strain. We show that in comparison with an electric field, strain can be more efficiently used to manipulate the magnetic and electronic properties of the system. Notably, such systematic tuning of the spin interactions is essential for the engineering of room-temperature spintronic nanodevices.

9 figures, 11 pages

References in corpus (10)

• Electric Field Effect in Atomically Thin Carbon Films
• Quantum ESPRESSO: a modular and open-source software project for quantum simulations of materials
• Magnetic 2D materials and heterostructures
• Direct observation of the Dzyaloshinskii-Moriya interaction in a Pt/Co/Ni film
• Interfacial Dzyaloshinskii-Moriya interaction in perpendicularly-magnetized Pt/Co/AlO${}_x$ ultrathin films measured by Brillouin light spectroscopy
• Strain-tunable magnetic and electronic properties of monolayer CrI3
• Magnetic Skyrmions in Atomic Thin CrI${}_3$ Monolayer
• Out- versus in-plane magnetic anisotropy of free Fe and Co nanocrystals: tight-binding and first-principles studies
• Spin wave spectrum of the quantum ferromagnet on the pyrochlore lattice Lu2V2O7
• Structural and magnetic response of CrI3 monolayer to electric field

Cited by in corpus (23)

• Curved Magnetism in CrI${}_3$
• Strain-tunable Dzyaloshinskii--Moriya interaction and skyrmions in two-dimensional Janus Cr${}_2$X${}_3$Y${}_3$ (X, Y = Cl, Br, I, X $\ne$ Y) trihalide monolayers
• The interplay of Dzyaloshinskii-Moriya and Kitaev interactions for magnonic properties of Heisenberg-Kitaev honeycomb ferromagnets
• Control of magnetic states and spin interactions in bilayer CrCl${}_3$ with strain and electric fields: an ab initio study
• Tunable topological magnon-polaron states and anomalous Hall phenomena in two-dimensional ferromagnetic insulators
• Topological magnon gap engineering in van der Waals CrI${}_3$ ferromagnets
• Magnon Landau levels in the strained antiferromagnetic honeycomb nanoribbons
• Electric-field control of magnetic anisotropies: applications to Kitaev spin liquids and topological spin textures
• Interlayer magnetic interactions in $\pi /3$-twisted bilayer CrI${}_3$
• Electrical tuning of the magnetic properties of 2D magnets: the case of ${\mathrm{Cr}}_2{\mathrm{Ge}}_2{\mathrm{Te}}_6$
• Light-induced Dzyaloshinskii-Moriya interactions in antiferromagnetic metals
• Tailoring High-Frequency Magnonics in Monolayer Chromium Trihalides
• Magnon and photon blockade in a hybrid antiferromagnet-cavity quantum system
• Intrinsic Spin Nernst Effect and Chiral Edge Modes in van der Waals Ferromagnetic Insulators: Dzyaloshinskii-Moriya vs. Kitaev Interactions
• Hole doping as an efficient route to increase the Curie temperature in monolayer CrI${}_3$
• Magnon dispersion and spin transport in CrCl${}_3$ bilayers under different strain-induced magnetic states
• Long-range anisotropic Heisenberg ferromagnets and electrically tunable ordering
• Magnetic domain wall dynamics under external electric field in bilayer CrI${}_3$
• Group Theory Analysis of Phonons in Monolayer Chromium Trihalides and Their Janus Structures
• Electrical and thermal transport in a twisted heterostructure of transition metal dichalcogenide and CrI${}_3$ connected to a superconductor
• A proposal for leaky integrate-and-fire neurons by domain walls in antiferromagnetic insulators
• Magnetoelectricity of Topological Solitons in 2D Magnets
• Angular-Dependent Thermal Hall Effect in a Honeycomb Magnet: Disentangling Kitaev and Dzyaloshinskii-Moriya Interactions