Magnetic Two-Dimensional Chromium Trihalides: A Theoretical Perspective

Abstract

The discovery of ferromagnetic order in monolayer 2D crystals has opened a new venue in the field of two dimensional (2D) materials. 2D magnets are not only interesting on their own, but their integration in van der Waals heterostructures allows for the observation of new and exotic effects in the ultrathin limit. The family of Chromium trihalides, CrI${}_3$, CrBr${}_3$ and CrCl${}_3$, is, so far, the most studied among magnetic 2D crystals. In this mini-review, we provide a perspective of the state of the art of the theoretical understanding of magnetic 2D trihalides, most of which will also be relevant for other 2D magnets, such as vanadium trihalides. We discuss both the well-established facts, such as the origin of the magnetic moment and magnetic anisotropy and address as well open issues such as the nature of the anisotropic spin couplings and the magnitude of the magnon gap. Recent theoretical predictions on Moir\' e magnets and magnetic skyrmions are also discussed. Finally, we give some prospects about the future interest of these materials and possible device applications.

This document is the unedited Author's version of a Submitted Work that was subsequently accepted for publication in Nano Letters, copyright \c{opyright} American Chemical Society after peer review

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Cited by in corpus (62)

• Moiré heterostructures as a condensed matter quantum simulator
• Moiré skyrmions and chiral magnetic phases in twisted CrX${}_3$ (X $=$ I, Br, Cl) bilayers
• Relativistic exchange interactions in CrX${}_3$ (X=Cl, Br, I) monolayers
• Magnetic anisotropy and exchange interactions of two-dimensional FePS${}_3$, NiPS${}_3$ and MnPS${}_3$ from first principles calculations
• Nanodevices engineering and spin transport properties of MnBi2Te4 monolayer
• Microscopic origin of multiferroic order in monolayer NiI${}_2$
• Magnetic Anisotropy in Spin-3/2 with Heavy Ligand in Honeycomb Mott Insulators: Application to CrI${}_3$
• Asymmetric magnetic proximity interactions in MoSe${}_2$/CrBr${}_3$ van der Waals heterostructures
• Progress and Prospects in Two-Dimensional Magnetism of van der Waals Materials
• Chiral Hinge Magnons in Second-Order Topological Magnon Insulators
• Monolayer CrCl${}_3$ as an ideal Test Bed for the Universality Classes of 2D Magnetism
• Ferromagnetism on an atom-thick and extended 2D-metal-organic framework
• Optical and magneto-optical properties of ferromagnetic monolayer CrBr${}_3$: A first-principles $GW$ and $GW$ plus Bethe-Salpeter equation study
• Electronic Structure of Chromium Trihalides beyond Density Functional Theory
• Magnetoelectric Response of Antiferromagnetic Van der Waals Bilayers
• Theory of magnetism in the van der Waals magnet CrI3
• Massless Dirac magnons in the two dimensional van der Waals honeycomb magnet CrCl3
• Self-consistently renormailzed spin-wave theory of layered ferromagnets on honeycomb lattice
• Magnon-phonon interactions enhance the gap at the Dirac point in the spin-wave spectra of CrI${}_3$ two-dimensional magnets
• Valence band electronic structure of the van der Waals ferromagnetic insulators: VI${}_3$ and CrI${}_3$
• Magnetic Anisotropy in Two-dimensional van der Waals Magnetic Materials and Their Heterostructures: Importance, Mechanisms, and Opportunities
• Intrinsic nonlinear thermal Hall transport of magnons: A Quantum kinetic theory approach
• Easy-plane anisotropic-exchange magnets on a honeycomb lattice: quantum effects and dealing with them
• Whirling interlayer fields as a source of stable topological order in moiré CrI3
• Plasmon-magnon interactions in two-dimensional honeycomb magnets
• Magnetism and stability of all primitive stacking patterns in bilayer chromium trihalides
• Dirac surface states in magnonic analogs of topological crystalline insulators
• Magnon-magnon interaction and magnon relaxation time in ferromagnetic Cr2Ge2Te6 monolayer
• Tunneling current-controlled spin states in few-layer van der Waals magnets
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• Strong magnetic proximity effect in Van der Waals heterostructures driven by direct hybridization
• turboMagnon -- A code for the simulation of spin-wave spectra using the Liouville-Lanczos approach to time-dependent density-functional perturbation theory
• Dynamical correlations in single-layer CrI${}_3$
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• Insights on magnon topology and valley-polarization in 2D bilayer quantum magnets
• On-site and inter-site Hubbard corrections in magnetic monolayers: The case of FePS${}_3$ and CrI${}_3$
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• Magnetic interactions and spin excitations in van der Waals ferromagnet VI${}_3$
• Giant gate-tunable renormalization of spin-correlated flat-band states and bandgap in a 2D magnetic insulator
• Resonant Raman Scattering of Few Layers CrBr${}_3$
• Symmetry Analysis of Tensors in the Honeycomb Lattice of Edge-Sharing Octahedra
• Activating magnetoelectric optical properties by twisting antiferromagnetic bilayers
• Magnon dispersion in bilayers of two-dimensional ferromagnets
• First-principles study of the gap in the spin excitation spectrum of the CrI${}_3$ honeycomb ferromagnet
• Superexchange and spin-orbit coupling in monolayer and bilayer chromium trihalides
• Electrical tuning of the magnetic properties of 2D magnets: the case of ${\mathrm{Cr}}_2{\mathrm{Ge}}_2{\mathrm{Te}}_6$
• Sign Changes in Heat, Spin, and Orbital Magnon Transport Coefficients in Kitaev Ferromagnets
• Delving into the anisotropic interlayer exchange in bilayer CrI${}_3$
• Orbital correlations in ultrathin films of late transition metals
• Momentum-space theory for topological magnons in 2D ferromagnetic skyrmion lattices
• Magnonic Thermal Machines
• Interlayer superexchange in bilayer chromium trihalides
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• Magnetization dependent tunneling conductance of ferromagnetic barriers
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• Quantum selection of order and dynamic properties of Kitaev-Heisenberg ferromagnet on a triangular lattice
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• Valence Modifications in Hygroscopic VI3 Degraded Crystals via Soft X-Ray Synchrotron Radiation
• Computational Frameworks for Patterned Two-Dimensional Magnetism
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