Two-Dimensional Room Temperature Ferromagnetic Semiconductors with Quantum Anomalous Hall Effect

Abstract

To obtain room temperature ferromagnetic semiconductors is one of big challenges in science, and also premises essentially to realize room temperature quantum anomalous Hall effect (QAHE), both of which are quite expected for a long time. Here we report that, based on first-principles calculations, PdBr3, PtBr3, PdI3 and PtI3 monolayers are ferromagnetic semiconductors with possible high temperature QAHE. Monte Carlo simulations give Curie temperatures 350 K and 375 K for PdBr3 and PtBr3 monolayers, respectively. These two-dimensional (2D) materials are Chern insulators. The band gaps of PdBr3 and PtBr3 are 58.7 meV and 28.1 meV with GGA and 100.8 meV and 45 meV with HSE06, respectively, quite well in favor of observing room temperature QAHE. The large band gaps were unveiled from multi-orbital electron correlations. By carefully checking the stability, PdBr3, PtBr3, and PtI3 monolayers are all predicted to be feasible in experiment. The present work sheds new light on developing promising spintronic devices by using the room temperature ferromagnetic semiconductors, and dissipationless devices by applying room temperature QAHE.

arXiv comment6 pages, 4 figures

References in corpus (26)

• Quantum Spin Hall Effect in Graphene
• Layer-dependent Ferromagnetism in a van der Waals Crystal down to the Monolayer Limit
• Discovery of intrinsic ferromagnetism in 2D van der Waals crystals
• Experimental Observation of the Quantum Anomalous Hall Effect in a Magnetic Topological Insulator
• WannierTools: An open-source software package for novel topological materials
• Quantized Anomalous Hall Effect in Magnetic Topological Insulators
• High-precision realization of robust quantum anomalous Hall state in a hard ferromagnetic topological insulator
• Dilute ferromagnetic semiconductors: Physics and spintronic structures
• Quantum Anomalous Hall Effect in Hg${}_{1-y}$Mn${}_y$Te Quantum Wells
• Quantum Anomalous Hall Effect in Graphene Proximity Coupled to an Antiferromagnetic Insulator
• Interplay between Kitaev interaction and single ion anisotropy in ferromagnetic CrI${}_3$ and CrGeTe${}_3$ monolayers
• Magnetic modulation doping in topological insulators toward higher-temperature quantum anomalous Hall effect
• Electrically tunable quantum anomalous Hall effect in 5d transition-metal adatoms on graphene
• Prediction of Near-Room-Temperature Quantum Anomalous Hall Effect on Honeycomb Materials
• Trivial and inverted Dirac bands, and emergence of quantum spin Hall states in graphene on transition-metal dichalcogenides
• Carrier-independent ferromagnetism and giant anomalous Hall effect in magnetic topological insulator
• Quantized Anomalous Hall Effect in Two-Dimensional Ferromagnets - Quantum Hall Effect from Metal -
• Electric Field Effect in Multilayer Cr2Ge2Te6: a Ferromagnetic Two-Dimensional Material
• Orbital analogue of quantum anomalous Hall effect in $p$-band systems
• NiCl3 Monolayer: Dirac Spin-Gapless Semiconductor and Chern Insulator
• In-plane Magnetization Induced Quantum Anomalous Hall Effect
• Quantum anomalous Hall effect in ferromagnetic transition metal halides
• Topological Spin Texture in a Quantum Anomalous Hall Insulator
• Quantum Anomalous Hall State in Ferromagnetic SrRuO${}_3$ (111) Bilayers
• Quantum Renormalization of the Spin Hall Effect
• New Group V Elemental Bilayers: A Tunable Structure Model with 4,6,8-atom Rings

Cited by in corpus (27)

• Room temperature 2D ferromagnetism in few-layered 1$T$-CrTe${}_2$
• Quantum Anomalous Hall Effect in Antiferromagnetism
• High-Temperature Quantum Anomalous Hall Insulators in Lithium-Decorated Iron-Based Superconductor Materials
• Large Family of Two-Dimensional Ferroelectric Metals Discovered via Machine Learning
• Great enhancement of Curie temperature and magnetic anisotropy in two-dimensional van der Waals magnetic semiconductor heterostructures
• Electric field induced topological phase transition and large enhancements of spin-orbit coupling and Curie temperature in two-dimensional ferromagnetic semiconductors
• Chern insulator in a hyperbolic lattice
• Stacking-dependent ferroicity of reversed bilayer: altermagnetism or ferroelectricity
• Monolayer V2MX4: A new family of quantum anomalous Hall insulators
• Kagome quantum anomalous Hall effect with high Chern number and large band gap
• T-carbon: experiments, properties, derivatives and potential applications
• P-orbital magnetic topological states on square lattice
• Antiferromagnetic and Electric Polarized States in Two-Dimensional Janus Semiconductor Fe2Cl3I3
• Intrinsic and tunable quantum anomalous Hall effect and magnetic topological phases in XYBi2Te5
• High-Efficient ab initio Bayesian Active Learning Method and Applications in Prediction of Two-dimensional Functional Materials
• Discovering two-dimensional magnetic topological insulators by machine learning
• Emergent magnetic states due to stacking and strain in the van der Waals magnetic trilayer CrI3
• Multimechanism quantum anomalous Hall and Chern number tunable states in germanene (silicene, stanene)/$M$Bi${}_2$Te${}_4$ heterostructures
• Large-Gap Quantum Anomalous Hall Insulators in $A$Ti$X$ Class
• Quarter-filled Kane-Mele Hubbard model: Dirac half-metals
• Universally optimizable strategy for magnetic gaps towards high-temperature quantum anomalous Hall states via magnetic-insulator/topological-insulator building-blocks
• 5d orbital Induced Room Temperature Quantum Anomalous Hall Effect in TbCl
• Tailoring Robust Quantum Anomalous Hall Effect via Entropy-Engineering
• In-plane magnetization orientation driven topological phase transition in OsCl${}_3$ monolayer
• Magnetization-Tunable Topological Phase Transitions in Ferromagnetic Kagome Monolayers of Co${}_3$X${}_3$Y${}_2$ ($X=\mathrm{Sn},\mathrm{Pb}$; $Y=\mathrm{S},\mathrm{Se}$)
• Large-Gap Quantum Anomalous Hall Effect in Monolayer Halide Perovskite
• Electronic Correlations Control Interlayer Coupling and Magnetic Transition in MnBi${}_2$Te${}_4$/MnBr${}_3$ Heterostructure