Two-dimensional chromium bismuthate: A room-temperature Ising ferromagnet with tunable magneto-optical response

Abstract

We present a density functional theory (DFT) based study of a two-dimensional phase of chromium bismuthate (CrBi), previously unknown material with exceptional magnetic and magnetooptical characteristics. Monolayer CrBi is a ferromagnetic metal with strong spin-orbit coupling induced by the heavy bismuth atoms, resulting in a strongly anisotropic Ising-type magnetic ordering with the Curie temperature estimated to be higher than 300 K. The electronic structure of the system is topologically nontrivial, giving rise to a nonzero Berry curvature in the ground magnetic state, leading to the anomalous Hall effect with the conductivity plateau of $\sim$1.5 $e^2/h$ at the Fermi level. Remarkably, the Hall conductivity and the magnetooptical constant are found to be strongly dependent on the direction of magnetization. Besides, monolayer CrBi demonstrates the polar magnetooptical Kerr effect in the visible and near-ultraviolet spectral ranges with the maximum rotation angles of up to 10 mrad. Our findinds suggest that monolayer CrBi is a promising system for practical applications in magnetooptical and spintronic devices.

References in corpus (51)

• Topological Insulators
• Layer-dependent Ferromagnetism in a van der Waals Crystal down to the Monolayer Limit
• Discovery of intrinsic ferromagnetism in 2D van der Waals crystals
• Maximally-localized generalized Wannier functions for composite energy bands
• Anomalous Hall effect
• Wannier90: A Tool for Obtaining Maximally-Localised Wannier Functions
• Maximally localized Wannier functions: Theory and applications
• Gate-tunable Room-temperature Ferromagnetism in Two-dimensional Fe${}_3$GeTe${}_2$
• Distribution of phonon lifetime in Brillouin zone
• Electrical Control of 2D Magnetism in Bilayer CrI3
• Giant Tunneling Magnetoresistance in Spin-Filter van der Waals Heterostructures
• The Computational 2D Materials Database: High-Throughput Modeling and Discovery of Atomically Thin Crystals
• Controlling magnetism in 2D CrI3 by electrostatic doping
• First Principles Calculation of Anomalous Hall Conductivity in Ferromagnetic bcc Fe
• Probing magnetism in 2D van der Waals crystalline insulators via electron tunneling
• Room Temperature Intrinsic Ferromagnetism in Epitaxial Manganese Selenide Films in the Monolayer Limit
• Stacking-Dependent Magnetism in Bilayer CrI${}_3$
• On the origin of magnetic anisotropy in two dimensional CrI${}_3$
• Strain-tunable magnetic anisotropy in monolayer CrCl${}_3$, CrBr${}_3$, and CrI${}_3$
• Very Large Tunneling Magnetoresistance in Layered Magnetic Semiconductor CrI${}_3$
• Electric-field control of magnetism in few-layered van der Waals magnet
• Ab initio calculation of the anomalous Hall conductivity by Wannier interpolation
• Universal Scaling Behavior of Anomalous Hall Effect and Anomalous Nernst Effect in Itinerant Ferromagnets
• Direct observation of van der Waals stacking dependent interlayer magnetism
• Strain-tunable magnetic and electronic properties of monolayer CrI3
• Spin direction controlled electronic band structure in two dimensional ferromagnetic CrI3
• Physical origin of giant excitonic and magneto-optical responses in two-dimensional ferromagnetic insulators
• Interplay between interlayer exchange and stacking in CrI${}_3$ bilayers
• Anisotropic Spin Hamiltonians due to Spin-Orbit and Coulomb Exchange Interactions
• Calculating critical temperatures for ferromagnetic order in two-dimensional materials
• The anomalous Hall Effect and magnetoresistance in the layered ferromagnet Fe_{1/4}TaS_2: the inelastic regime
• On the self-consistent spin-wave theory of layered Heisenberg magnets
• Orbitally-resolved ferromagnetism of monolayer CrI${}_3$
• Large tunneling magnetoresistance in VSe2/MoS2 magnetic tunnel junction
• Relativistic exchange interactions in CrX${}_3$ (X=Cl, Br, I) monolayers
• VI3: a 2D Ising ferromagnet
• Magnetic Skyrmions in Atomic Thin CrI${}_3$ Monolayer
• Magnetism and Magneto-optical Effects in Bulk and Few-layer CrI${}_3$: A Theoretical GGA + U Study
• Electronic correlations in monolayer VS${}_2$
• Magneto-optical response of chromium trihalide monolayers: chemical trends
• Intrinsic ferromagnetism and quantum anomalous Hall effect in CoBr2 monolayer
• Critical behavior of ferromagnets CrI3, CrBr3, CrGeTe3, and anti-ferromagnet FeCl2: a detailed first-principles study
• Structural phase transitions in VSe2: energetics, electronic structure and magnetism
• Computational Search for Magnetic and Non-magnetic 2D Topological Materials using Unified Spin-orbit Spillage Screening
• Electron-phonon properties and superconductivity of doped antimonene
• The Enhanced Ferromagnetism of Single-Layer CrX3 (X=Br and I) by Van der Waals Engineering
• Magneto-optical Kerr effect in spin split two-dimensional massive Dirac materials
• 2D ferromagnetism at finite temperatures under quantum scrutiny
• Interplay between in-plane and flexural phonons in electronic transport of two-dimensional semiconductors
• Gate-tunable infrared plasmons in electron-doped single-layer antimony
• CrAs monolayer: Low buckled two-dimensional half-metal ferromagnet

Cited by in corpus (1)

• Spin-tunable thermoelectric performance in monolayer chromium pnictides