Unconventional enhancement of anomalous Hall effect by tilt of Zeeman field in topologically-nontrivial MXenes, $M_2{M}^{\prime }$C${}_2$O${}_2$

Abstract

In this paper, the anomalous Hall effect of topologically-nontrivial MXenes, $M_2{M}^{\prime }$C${}_2$O${}_2$, and the electronic structure in the presence of magnetic proximity effect is theoretically investigated. The theoretical analysis is performed in two different ways: an effective model and a multi-orbital tight-binding model generated from the first-principles band structure. These two theoretical methods provided the similar profile of Berry curvature for electronic states near the bulk band gap, and they show an unconventional rise of hollowed-out peak in the profile with the tilt of proximity magnetic potential. The anomalous Hall conductivity is also calculated as a function of the charge density and the tilt angle of proximity magnetic order. Then, an unconventional enhancement of anomalous Hall conductivity by the tilt of magnetic order is theoretically predicted as a result of the variation of Berry curvature.

arXiv comment10 pages, 9 figures

References in corpus (18)

• Quantum ESPRESSO: a modular and open-source software project for quantum simulations of materials
• The electronic properties of graphene
• Coupled spin and valley physics in monolayers of MoS2 and other group-VI dichalcogenides
• Anomalous Hall effect
• Wannier90: A Tool for Obtaining Maximally-Localised Wannier Functions
• First Principles Calculation of Anomalous Hall Conductivity in Ferromagnetic bcc Fe
• Berry Curvature on the Fermi Surface: Anomalous Hall Effect as a Topological Fermi-Liquid Property
• Proximity-induced ferromagnetism in graphene revealed by anomalous Hall effect
• Topological insulators in ordered double transition metals M${}_2^{\prime }$M$"$C${}_2$ (M${}^{\prime }$= Mo, W; M$"$= Ti, Zr, Hf) MXenes
• Band signatures for strong nonlinear Hall effect in bilayer WTe${}_2$
• Above 400 K Robust Perpendicular Ferromagnetic Phase in a Topological Insulator
• Independent tuning of electronic properties and induced ferromagnetism in topological insulators with heterostructure approach
• Large anomalous Hall effect in ferromagnetic insulator-topological insulator heterostructures
• Large Anomalous Hall Effect in Topological Insulators with Proximitized Ferromagnetic Insulators
• Charge transport in ion-gated mono-, bi-, and trilayer MoS2 field effect transistors
• Anomalous Hall effect in 2$H$-phase transition-metal dichalcogenide monolayers on ferromagnetic substrates
• Spontaneous spin-valley polarization in NbSe2 at a van der Waals interface
• The Anomalous Hall Effect in Magnetic Topological Insulators