Spin-Orientation Dependent Topological States in Two-Dimensional Antiferromagnetic NiTl${}_2$S${}_4$ Monolayers

Abstract

The topological states of matters arising from the nontrivial magnetic configuration provide a better understanding of physical properties and functionalities of solid materials. Such studies benefit from the active control of spin orientation in any solid, which is yet known to rarely take place in the two-dimensional (2D) limit. Here we demonstrate by the first-principles calculations that spin-orientation dependent topological states can appear in the geometrically frustrated monolayer antiferromagnet. Different topological states including quantum anomalous Hall (QAH) effect and time-reversal-symmetry (TRS) broken quantum spin Hall (QSH) effect can be obtained by changing spin orientation in the NiTl2S4 monolayer. Remarkably, the dilated nc-AFM NiTl2S4 monolayer gives birth to the QAH effect with hitherto reported largest number of quantized conducting channels (Chern number C = -4) in 2D materials. Interestingly, under tunable chemical potential, the nc-AFM NiTl2S4 monolayer hosts a novel state supporting the coexistence of QAH and TRS broken QSH effects with a Chern number C = 3 and spin Chern number C_s = 1. This work manifests a promising concept and material realization toward topological spintronics in 2D antiferromagnets by manipulating its spin degree of freedom.

References in corpus (33)

• Electronic Structure of Pyrochlore Iridates: From Topological Dirac Metal to Mott Insulator
• Wannier90: A Tool for Obtaining Maximally-Localised Wannier Functions
• Experimental Observation of the Quantum Anomalous Hall Effect in a Magnetic Topological Insulator
• First Principles Calculation of Anomalous Hall Conductivity in Ferromagnetic bcc Fe
• High-precision realization of robust quantum anomalous Hall state in a hard ferromagnetic topological insulator
• Large anomalous Hall effect driven by non-vanishing Berry curvature in non-collinear antiferromagnetic Mn3Ge
• Anomalous Hall effect arising from noncollinear antiferromagnetism
• Quantum Anomalous Hall Effect in Graphene from Rashba and Exchange Effects
• Antiferromagnetic topological insulators
• Spin Anisotropy and Quantum Hall Effect in the Kagome Lattice - Chiral Spin State based on a Ferromagnet-
• Chiral Topological Superconductor From the Quantum Hall State
• Topological Phases in Two-Dimensional Materials: A Brief Review
• Quantum anomalous Hall effect and related topological electronic states
• Tunable Magnetism and Half-Metallicity in Hole-doped Monolayer GaSe
• Quantum Anomalous Hall Effect in Graphene Proximity Coupled to an Antiferromagnetic Insulator
• Non-collinear Antiferromagnets and the Anomalous Hall Effect
• Electrically tunable quantum anomalous Hall effect in 5d transition-metal adatoms on graphene
• Time-reversal-symmetry-broken quantum spin Hall effect
• Bulk-boundary correspondence of topological insulators from their Green's functions
• Intrinsic spin Hall effect in monolayers of group-VI dichalcogenides: A first-principles study
• Sign Changes of Intrinsic Spin Hall Effect in Semiconductors and Simple Metals: First-Principles Calculations
• Microscopic theory of quantum anomalous Hall effect in graphene
• Layer- and doping-tunable long range ferromagnetic order-ing in two-dimensional CrS2
• Photoinduced topological phase transitions in strained black phosphorus
• Chern insulators from heavy atoms on magnetic substrates
• Quantum topological Hall effect and noncoplanar antiferromagnetism in K${}_{0.5}$RhO${}_2$
• Topological Spin Texture in a Quantum Anomalous Hall Insulator
• Screening magnetic two-dimensional atomic crystals with nontrivial electronic topology
• Two Dimensional Antiferromagnetic Chern Insulator NiRuCl6
• Chern Half Metals: A New Class of Topological Materials to Realize the Quantum Anomalous Hall Effect
• Symmetry Protected Topological Charge in Symmetry Broken Phase: Spin-Chern, Spin-Valley-Chern and Mirror-Chern Numbers
• Absence of magnetic ordering in NiGa_2S_4
• Magnetic Dirac Fermions and Chern Insulator Supported on Pristine Silicon Surface

Cited by in corpus (5)

• Spin-Polarized Antiferromagnetic Spintronics
• Chern-insulator phase in antiferromagnets
• Intrinsic Magnetic Topological Materials
• Quantum Anomalous Hall Effect by Coupling Heavy Atomic Layers with CrI${}_3$
• First-principles study on the bulk and two-dimensional structures of AMnBi(A =K, Rb, Cs)-family materials