Observation of a Majorana zero mode in a topologically protected edge channel

Abstract

Superconducting proximity pairing in helical edge modes, such as those of topological insulators (TI), is predicted to provide a unique platform for realizing Majorana zero modes (MZMs). We use scanning tunneling microscopy measurements to probe the influence of proximity induced superconductivity and magnetism on the helical hinge states of Bi(111) films, grown on a superconducting Nb substrate and decorated with magnetic Fe clusters. Consistent with model calculations, our measurements reveal the emergence of a localized MZM at the interface between the superconducting helical edge channel and the Fe clusters with strong magnetization component along the edge. Our experiments also resolve the MZM spin signature that distinguishes it from trivial in-gap states that may accidently occur at zero energy in a superconductor.

References in corpus (37)

• Fault-tolerant quantum computation by anyons
• Non-Abelian Anyons and Topological Quantum Computation
• Layer-dependent Ferromagnetism in a van der Waals Crystal down to the Monolayer Limit
• Unpaired Majorana fermions in quantum wires
• Signatures of Majorana fermions in hybrid superconductor-semiconductor nanowire devices
• Majorana Fermions and a Topological Phase Transition in Semiconductor-Superconductor Heterostructures
• Helical liquids and Majorana bound states in quantum wires
• Observation of Majorana Fermions in Ferromagnetic Atomic Chains on a Superconductor
• Quantized Electric Multipole Insulators
• 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
• Josephson Current and Noise at a Superconductor-Quantum Spin Hall Insulator-Superconductor Junction
• Reflection symmetric second-order topological insulators and superconductors
• Higher-Order Topology in Bismuth
• Observation of the Quantum Spin Hall Effect up to 100 Kelvin in a Monolayer Crystal
• Majorana fermions in chains of magnetic atoms on a superconductor
• Evidence for Majorana bound state in an iron-based superconductor
• Quantum Spin Hall Effect and Enhanced Magnetic Response by Spin-Orbit Coupling
• Topological Superconductivity and Majorana Fermions in RKKY Systems
• Quantized Majorana conductance
• Topological superconducting phase in helical Shiba chains
• Scaling of Majorana Zero-Bias Conductance Peaks
• One-dimensional Topological Edge States of Bismuth Bilayers
• Electrically Tunable Low Density Superconductivity in a Monolayer Topological Insulator
• Majorana Fermions in Semiconductor Nanowires
• Majorana qubit decoherence by quasiparticle poisoning
• Zero-energy vortex bound state in the superconducting topological surface state of Fe(Se,Te)
• Distinguishing a Majorana zero mode using spin resolved measurements
• Spin and Majorana polarization in topological superconducting wires
• Majorana Kramers pairs in higher-order topological insulators
• Observation of a Majorana zero mode in a topologically protected edge channel
• Strong localization of Majorana end states in chains of magnetic adatoms
• Ballistic edge states in Bismuth nanowires revealed by SQUID interferometry
• Proposal for the detection and braiding of Majorana fermions in a quantum spin Hall insulator
• Splitting the hinge mode of higher-order topological insulators
• The Majorana spin in magnetic atomic chain systems

Cited by in corpus (99)

• Topological superconductivity in a van der Waals heterostructure
• Material design with the van der Waals stacking of bismuth-halide chains realizing a higher-order topological insulator
• Observation of a Majorana zero mode in a topologically protected edge channel
• Signature of a pair of Majorana zero modes in superconducting gold surface states
• Proximity-induced superconducting gap in the quantum spin Hall edge state of monolayer WTe${}_2$
• Visualization of Topological Boundary Modes Manifesting Topological Nodal-Point Superconductivity
• Majorana corner modes and tunable patterns in an altermagnet heterostructure
• Majorana nanowires for topological quantum computation
• Discovery of segmented Fermi surface induced by Cooper pair momentum
• Hunting for Majoranas
• One-Dimensional Edge Transport in Few-Layer WTe${}_2$
• Majorana corner and hinge modes in second-order topological insulator-superconductor heterostructures
• Atomically Thin Quantum Spin Hall Insulators
• Dynamics of almost strong edge modes in spin chains away from integrability
• Mechanical analogue of a Majorana bound state
• 2024 roadmap on 2D topological insulators
• Majorana bound states in semiconducting nanostructures
• Helical Liquids in Semiconductors
• Proximity superconductivity in atom-by-atom crafted quantum dots
• Prediction of intrinsic topological superconductivity in Mn-doped GeTe monolayer from first-principles
• Topological superconductivity from magnetic impurities on monolayer NbSe${}_2$
• Even-odd effect and Majorana states in full-shell nanowires
• Role of Majorana Fermions in high-harmonic generation from Kitaev chain
• Competing Vortex Topologies in Iron-based Superconductors
• Euler Obstructed Cooper Pairing: Nodal Superconductivity and Hinge Majorana Zero Modes
• Interaction-induced topological phase transition and Majorana edge states in low-dimensional orbital-selective Mott insulators
• On-demand thermoelectric generation of equal-spin Cooper pairs
• Planar Josephson junctions in germanium: Effect of cubic spin-orbit interaction
• Quadrupole spin polarization as signature of second-order topological superconductors
• Observation of backscattering induced by magnetism in a topological edge state
• Sublattice-enriched tunability of bound states in second-order topological insulators and superconductors
• Emergent vortex Majorana zero mode in iron-based superconductors
• Evidence for Unconventional Superconductivity and Nontrivial Topology in PdTe
• Chiral Majorana Hinge Modes in Superconducting Dirac Materials
• Multi-Band Superconductivity in Strongly Hybridized 1T'-WTe${}_2$/NbSe${}_2$ Heterostructures
• Topological superconductivity in EuS/Au/superconductor heterostructures
• Topological crystalline insulator state with type-II Dirac fermions in transition metal dipnictides
• Higher-order Topological Phases of Magnons in van der Waals Honeycomb Ferromagnets
• Cross-dimensional universality classes in static and periodically driven Kitaev models
• Signatures of the Majorana spin in electrical transport through a Majorana nanowire
• Sublattice-sensitive Majorana Modes
• High-temperature Majorana corner modes in a $d+i{d}^{\prime }$ superconductor heterostructure: Application to twisted bilayer cuprate superconductors
• Long-lived Andreev states as evidence for protected hinge modes in a bismuth nanoring Josephson junction
• Chemical Principles of Intrinsic Topological Superconductors
• Edge modes and symmetry-protected topological states in open quantum systems
• Optical bulk-boundary dichotomy in a quantum spin Hall insulator
• Spanning Fermi arcs in a two-dimensional magnet
• Coexistence of Strong and Weak Majorana Zero Modes in Anisotropic XY Spin Chain with Second-Neighbor Interaction
• Thermoelectric detection of Andreev states in unconventional superconductors
• Probing Majorana zero modes by measuring transport through an interacting magnetic impurity
• Direct observation of quantum anomalous vortex in Fe(Se,Te)
• Single branch of chiral Majorana modes from doubly degenerate Fermi surfaces
• Platforms for the realization and characterization of Tomonaga-Luttinger liquids
• Magnetic field filtering of the hinge supercurrent in unconventional metal NiTe${}_2$-based Josephson junctions
• Superconducting properties and gap structure of the topological superconductor candidate Ti_(3)Sb
• Majorana end states in an interacting quantum wire
• Proximity-induced quasi-one-dimensional superconducting quantum anomalous Hall state: a promising scalable top-down approach towards localized Majorana modes
• Unitary Symmetry-Protected Non-Abelian Statistics of Majorana Modes
• Majorana bound states in topological insulators with hidden Dirac points
• Low-temperature environments for quantum computation and quantum simulation
• Impurity-induced excitations in a topological two-dimensional ferromagnet/superconductor van der Waals moiré heterostructure
• Waiting time distributions in Quantum spin hall based heterostructures
• Multiplicative Majorana zero-modes
• Majorana zero modes by engineering topological kink states in two dimensional electron gas
• Observation of Yu-Shiba-Rusinov-like states at the edge of CrBr3/NbSe2 heterostructure
• Controlling Majorana modes by $p$-wave pairing in two-dimensional $p+id$ topological superconductors
• Identifying Majorana bound states at quantum spin Hall edges using a metallic probe
• A new twist on the Majorana surface code: Bosonic and fermionic defects for fault-tolerant quantum computation
• Chiral detection of Majorana bound states at the edge of a quantum spin Hall insulator
• A topological current divider
• Chiral topologically ordered insulating phases in arrays of interacting integer quantum Hall islands
• RKKY interaction at helical edges of topological superconductors
• Majorana Zero Modes in Ferromagnetic Wires without Spin-Orbit Coupling
• Platform for controllable Majorana zero modes using superconductor/ferromagnet heterostructures
• Transport in Magnetically Doped One-Dimensional Wires: Can the Helical Protection Emerge without the Global Helicity?
• Detecting non-Abelian statistics of topological states on a chain of superconducting circuits
• Optical Berry Curvature of Hinge State and Its Detection
• Non-Hermitian zero mode laser in a nanophotonic trimer
• Dynamics of a Majorana trijunction in a microwave cavity
• Unveiling Symmetry Instability induced by Topological Phase Transitions
• Superconducting triangular islands as a platform for manipulating Majorana zero modes
• A proposal for realizing Majorana fermions without external magnetic field in strongly correlated nanowires
• Detecting Topological Superconductivity via Berry Curvature Effects in Spectral Functions
• Ever-present Majorana bound state in a generic one-dimensional superconductor with odd number of Fermi surfaces
• From Majorana fermions to topological quantum computation in semiconductor/superconductor heterostructures
• Optical conductivity of the Majorana mode at the s- and d-wave topological superconductor edge
• Magnetic-field driven evolution of zero-energy mode on Bi islands deposited on Fe(Te,Se)
• Phase transitions in quantum dot-Majorana zero mode coupling systems
• Fermi Surface Topology and Magneto-transport Properties of Superconducting Pd${}_3$Bi${}_2$Se${}_2$
• Visualizing near-coexistence of massless Dirac electrons and ultra-massive saddle point electrons
• Reversible Modification of Rashba States in Topological Insulators at Room Temperature by Edge Functionalization
• Unveiling Topological Hinge States in the Higher-Order Topological Insulator WTe${}_2$ Based on the Fractional Josephson Effect
• Spin-dependent tunneling between individual superconducting bound states
• Identification of the Majorana edge modes in tight-binding systems based on the Krylov method
• Protected helical transport in magnetically doped quantum wires: Beyond the one-dimensional paradigm
• Analytical classification of Majorana zero-mode spatial profiles in extended Kitaev chains: probability maxima can shift inward
• Emergent One-Dimensional Helical Channel in Higher-Order Topological Insulators with Step Edges
• Many-body wave function and edge magnetization of an open $p+is$ superconducting chain
• Majorana vortex phases in time-reversal invariant higher-order topological insulators and topologically trivial insulators