Proximity-induced Majorana hinge modes in antiferromagnetic topological insulators

Abstract

We propose a realization of chiral Majorana modes propagating on the hinges of a 3D antiferromagnetic topological insulator, which was recently theoretically predicted and experimentally confirmed in the tetradymite-type $\mathrm{MnB}{\mathrm{i}}_2\mathrm{T}{\mathrm{e}}_4$-related ternary chalgogenides. These materials consist of ferromagnetically ordered 2D layers, whose magnetization direction alternates between neighboring layers, forming an antiferromagnetic order. Besides surfaces with a magnetic gap, there also exsist gapless surfaces with a single Dirac cone, which can be gapped out when proximity coupled to an $s$-wave superconductor. On the sharing edges between the two types of gapped surfaces, the chiral Majorana modes emerge. We further propose experimental signatures of these Majoana hinge modes in terms of two-terminal conductance measurements.

9 pages, 6 figures

References in corpus (21)

• Non-Abelian Anyons and Topological Quantum Computation
• Superconducting proximity effect and Majorana fermions at the surface of a topological insulator
• Signatures of Majorana fermions in hybrid superconductor-semiconductor nanowire devices
• Majorana Fermions and a Topological Phase Transition in Semiconductor-Superconductor Heterostructures
• Evidence of Majorana fermions in an Al - InAs nanowire topological superconductor
• Observation of Majorana Fermions in Ferromagnetic Atomic Chains on a Superconductor
• Observation of Majorana Fermions in a Nb-InSb Nanowire-Nb Hybrid Quantum Device
• Electric Multipole Moments, Topological Multipole Moment Pumping, and Chiral Hinge States in Crystalline Insulators
• Majorana bound states in a coupled quantum-dot hybrid-nanowire system
• $(d-2)$-dimensional edge states of rotation symmetry protected topological states
• Reflection symmetric second-order topological insulators and superconductors
• Anomalous modulation of a zero bias peak in a hybrid nanowire-superconductor device
• Antiferromagnetic topological insulators
• Second-order topological insulators and superconductors with an order-two crystalline symmetry
• Topological Quantum Computation Based on Chiral Majorana Fermions
• Surface State Magnetization and Chiral Edge States on Topological Insulators
• High-Temperature Majorana Corner States
• Strong localization of Majorana end states in chains of magnetic adatoms
• Prediction of Weyl semimetal, AFM topological insulator, nodal line semimetal, and Chern insulator phases in Bi2MnSe4
• Quantum phase transition of chiral Majorana fermion in the presence of disorder
• Two-dimensional topological superconductivity with antiferromagnetic insulators

Cited by in corpus (49)

• Intrinsic magnetic topological insulators in van der Waals layered MnBi${}_2$Te${}_4$-family materials
• Chemical Aspects of the Antiferromagnetic Topological Insulator MnBi${}_2$Te${}_4$
• Spin scattering and noncollinear spin structure-induced intrinsic anomalous Hall effect in antiferromagnetic topological insulator $\mathrm{MnB}{\mathrm{i}}_2\mathrm{T}{\mathrm{e}}_4$
• Variety of magnetic topological phases in the (MnBi${}_2$Te${}_4$)(Bi${}_2$Te${}_3$)${}_m$ family
• Higher Order Topology and Nodal Topological Superconductivity in Fe(Se,Te) Heterostructures
• Magnetically Controllable Topological Quantum Phase Transitions in Antiferromagnetic Topological Insulator MnBi${}_2$Te${}_4$
• Higher-order topological odd-parity superconductors
• Topological electronic structure and intrinsic magnetization in MnBi${}_4$Te${}_7$: a Bi${}_2$Te${}_3$-derivative with a periodic Mn sublattice
• Magnetic and transport properties in magnetic topological insulators MnBi2Te4(Bi2Te3)n (n=1,2)
• Majorana corner and hinge modes in second-order topological insulator-superconductor heterostructures
• Intrinsic magnetic topological insulators
• Nanodevices engineering and spin transport properties of MnBi2Te4 monolayer
• First- and Second-Order Topological Superconductivity and Temperature-Driven Topological Phase Transitions in the Extended Hubbard Model with Spin-Orbit Coupling
• Second-order topological phases protected by chiral symmetry
• MoSi${}_2$N${}_4$-like crystals -- the new family of two-dimensional materials
• Phase tunable second-order topological superconductor
• Higher-Order Topological Dirac Superconductors
• Topological magnetic materials of the (MnSb${}_2$Te${}_4$)$\cdot$(Sb${}_2$Te${}_3$)${}_n$ van der Waals compounds family
• Orbital Complexity in Intrinsic Magnetic Topological Insulators MnBi${}_4$Te${}_7$ and MnBi${}_6$Te${}_{10}$
• Electronic structures and topological phases of magnetic layered materials MnBi2Te4, MnBi2Se4 and MnSb2Te4
• Higher-order topological pumping and its observation in photonic lattices
• Detection of second-order topological superconductors by Josephson junctions
• Simulation of Higher-Order Topological Phases and Related Topological Phase Transitions in a Superconducting Qubit
• Vortex-line topology in iron-based superconductors with and without second-order topology
• Higher-order topological superconductors based on weak topological insulators
• Two-particle Berry phase mechanism for Dirac and Majorana Kramers pairs of corner modes
• Recent advancements in the study of intrinsic magnetic topological insulators and magnetic Weyl semimetals
• Theory of inversion-${\mathbb{Z}}_4$ protected topological chiral hinge states and its applications to layered antiferromagnets
• Appearance of hinge states in second-order topological insulators via the cutting procedure
• Corner- and sublattice-sensitive Majorana zero modes on the kagome lattice
• Ferromagnetic MnBi4Te7 obtained with low concentration Sb doping: A promising platform for exploring topological quantum states
• Intrinsic magnetic topological insulators of the MnBi${}_2$Te${}_4$ family
• Boundary Topological Superconductors
• Chiral Majorana Hinge Modes in Superconducting Dirac Materials
• Surface Bogoliubov-Dirac cones and helical Majorana hinge modes in superconducting Dirac semimetals
• Topological Superconductivity from Unconventional Band Degeneracy with Conventional Pairing
• Sublattice-sensitive Majorana Modes
• High-temperature Majorana corner modes in a $d+i{d}^{\prime }$ superconductor heterostructure: Application to twisted bilayer cuprate superconductors
• Antiferromagnetic topological insulator with selectively gapped Dirac cones
• Proximity-induced superconducting gap in the intrinsic magnetic topological insulator MnBi2Te4
• Helical Luttinger liquid on the edge of a 2-dimensional topological antiferromagnet
• Higher-order topological superconductor phases in a multilayer system
• Electrostatic effects of the MnBi2Te4-superconductor hetero-structures in chiral Majorana search
• Majorana corner states in an attractive quantum spin Hall insulator with opposite in-plane Zeeman energy at two sublattice sites
• Magnetic flux induced higher-order topological superconductivity
• Topological Aspects of Antiferromagnets
• First-principles discovery of novel quantum physics and materials: From theory to experiment
• Topological Magnetoelectric Switching on the Atomic Scale
• Chiral Majorana Fermions in two dimensional square lattice antiferromagnet with proximity-induced superconductivity