Helical Dirac-Majorana interferometer in a superconductor-topological insulator sandwich structure

Abstract

In the heterostructure composed of a topological insulator sandwiched by two s-wave superconductors, the time reversal invariant topological superconducting phase, possessing helical Majorana edge modes, is found to exist when the two s-wave superconductors form a Josephson junction with a pi phase shift. Based on such a heterostructure, a helical Dirac-Majorana interferometer is proposed to directly measure a unique transport signature of the helical Majorana modes. Furthermore, we envision how our proposal can be realized on the basis of existing materials such as Bi2Se3 or Bi2Te3 thin films.

5 pages, 2 figures, v2: modified Fig.2

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• Proximity-induced Josephson $\pi$-Junctions in Topological Insulators
• Intrinsic Time-reversal-invariant Topological Superconductivity in Thin Films of Iron-based Superconductors
• Robust Transport Signatures of Topological Superconductivity in Topological Insulator Nanowires
• Majorana corner modes with solitons in an attractive Hubbard-Hofstadter model of cold atom optical lattices
• Edge State Induced Andreev Oscillation in Quantum Anomalous Hall Insulator-Superconductor Junctions
• Higher-order topological superconductors based on weak topological insulators
• Electrically tunable topological superconductivity and Majorana fermions in two dimensions
• Thermal metal-insulator transition in a helical topological superconductor
• Highly tunable time-reversal-invariant topological superconductivity in topological insulator thin films
• Chiral Majorana edge states in HgTe quantum wells
• Detecting Majorana Bound States by Nanomechanics
• Rashba Sandwiches with Topological Superconducting Phases
• Signatures of Majorana Fermions in Topological Insulator Josephson Junction Devices
• Phase-locked magnetoconductance oscillations as a probe of Majorana edge states
• Helical Majorana edge mode in a superconducting antiferromagnetic quantum spin Hall insulator
• Proximity induced time-reversal topological superconductivity in Bi2Se3 films without phase tuning
• Majorana Doublets, Flat Bands, and Dirac Nodes in s-Wave Superfluids
• Nonlocal conductance reveals helical superconductors
• Meissner effect induced Majorana zero modes at small magnetic field
• Two-impurity helical Majorana problem
• Proposed Detection of the Topological Phase in Ring-Shaped Semiconductor-Superconductor Nanowires Using Coulomb Blockade Transport
• Time-Reversal Invariant Topological Superconductivity in Planar Josephson Bijunction
• Topological superconductor candidates PdBi${}_2$Te${}_4$ and PdBi${}_2$Te${}_5$ from a generic ab initio strategy
• Majorana corner modes in unconventional monolayers of the 1T-PtSe2 family
• Majorana corner modes and flat-band Majorana edge modes in superconductor/topological-insulator/superconductor junctions
• Excess equilibrium noise in topological SNS junction between chiral Majorana liquids
• Chiral to helical Majorana fermion transition in a $p$-wave superconductor
• Spin-orbit-coupled superconductivity with spin-singlet non-unitary pairing
• Full counting statistics of Majorana interferometers
• Higher-order topological superconductor phases in a multilayer system
• Chiral detection of Majorana bound states at the edge of a quantum spin Hall insulator
• Study on the tunneling spectroscopy of $N-pS$ junction and $N-hS$ junction
• RKKY interaction at helical edges of topological superconductors
• Experimental realization of Majorana hinge and corner modes in intrinsic organic topological superconductor without magnetic field at room temperature
• Tunneling between helical Majorana modes and helical Luttinger liquids
• Robustness of Topological Order in Semiconductor-Superconductor Nanowires in the Coulomb Blockade Regime
• Microwave response of a chiral Majorana interferometer
• Majorana Zero Modes and Topological Nature in Bi2Ta3S6-family Superconductors
• Volkov-Pankratov states on the edge of a quantum spin Hall system
• Coulomb blockade of chiral Majorana and complex fermions far from equilibrium
• Engineering Helical Superconductors with Multiple Majorana Kramers Pairs via Higher-Order Rashba Spin-Orbit Coupling
• Disorder-induced chiral and helical Majorana edge modes in a two-dimensional Ammann-Beenker quasicrystal