Tunable Majorana corner modes by orbital-dependent exchange interaction in a two-dimensional topological superconductor

Abstract

We theoretically study the effect of orbital-dependent exchange field in the formation of second order topological superconductors. We demonstrate that changing the orbital difference can induce topological transition and the Majorana corner modes therein can be manipulated. We further propose to detect the corner modes via a normal probe terminal. The conductance quantization is found to be robust to changes of the relevant system parameters.

arXiv comment6 pages, 3 figures. Comments are welcome

References in corpus (47)

• Topological Insulators
• Topological insulators and superconductors
• Fault-tolerant quantum computation by anyons
• Non-Abelian Anyons and Topological Quantum Computation
• Unpaired Majorana fermions in quantum wires
• Topological Insulators in Three Dimensions
• Topological Insulators with Inversion Symmetry
• New directions in the pursuit of Majorana fermions in solid state systems
• Search for Majorana fermions in superconductors
• Reflection symmetric second-order topological insulators and superconductors
• Majorana Fermion Induced Resonant Andreev Reflection
• Electrically detected interferometry of Majorana fermions in a topological insulator
• Higher-order topological insulators and superconductors protected by inversion symmetry
• Manipulation of Majorana fermion, Andreev reflection and Josephson current on topological insulators
• Majorana Fermions and Topology in Superconductors
• Topological Superconductivity in a Phase-Controlled Josephson Junction
• Observing Majorana Bound States in p-wave Superconductors Using Noise Measurements in Tunneling Experiments
• Gapless Andreev bound states in the quantum spin Hall insulator HgTe
• Midgap edge states and pairing symmetry of quasi-one-dimensional organic superconductors
• Majorana corner modes in a high-temperature platform
• High-Temperature Majorana Corner States
• Weak-Pairing Higher Order Topological Superconductors
• Majorana Kramers pairs in higher-order topological insulators
• Engineering Corner States from Two-Dimensional Topological Insulators
• Tunable Majorana corner states in a two-dimensional second-order topological superconductor induced by magnetic fields
• Majorana corner states in a two-dimensional magnetic topological insulator on a high-temperature superconductor
• Second Order Topological Superconductivity in $\pi$-Junction Rashba Layers
• In-plane Magnetization Induced Quantum Anomalous Hall Effect
• Second-order Topological Superconductors with Mixed Pairing
• Second-order Dirac superconductors and magnetic field induced Majorana hinge modes
• In-plane Zeeman field induced Majorana corner and hinge modes in an $s$-wave superconductor heterostructure
• Quantum Anomalous Hall Effect in Time-Reversal-Symmetry Breaking Topological Insulators
• Lattice symmetry assisted second order topological superconductors and Majorana patterns
• Topological and holonomic quantum computation based on second-order topological superconductors
• Higher-order topological superconductors in $\mathcal{P}$-, $\mathcal{T}$-odd quadrupolar Dirac materials
• First- and Second-Order Topological Superconductivity and Temperature-Driven Topological Phase Transitions in the Extended Hubbard Model with Spin-Orbit Coupling
• Antiunitary symmetry protected higher order topological phases
• Phase tunable second-order topological superconductor
• All-electrically tunable networks of Majorana bound states
• Fractional Topological Superconductivity and Parafermion Corner States
• Majorana corner modes with solitons in an attractive Hubbard-Hofstadter model of cold atom optical lattices
• Detection of second-order topological superconductors by Josephson junctions
• Vortex-line topology in iron-based superconductors with and without second-order topology
• Higher-order topological superconductors based on weak topological insulators
• Spin injection into a metal from a topological insulator
• Transport across a junction of topological insulators and a superconductor
• Rotational symmetry breaking and partial Majorana corner states in a high-Tc superconductor based heterostructure

Cited by in corpus (3)

• Meissner effect induced Majorana zero modes at small magnetic field
• Higher-order topological superconductor phases in a multilayer system
• Magnetic flux induced higher-order topological superconductivity