Meissner effect induced Majorana zero modes at small magnetic field

Abstract

One fundamental difficulty in realizing Majorana zero modes (MZMs) is the required high magnetic field, which causes serious issues, e.g., shrinks the superconducting gap, reduces topological region, and weakens their robustness against disorder. In this work, we propose that the Meissner effect can bring the topological superconducting phase to a superconductor/topological-insulator/superconductor (SC/TI/SC) hybrid system. Remarkably, the required magnetic field strength ($<$10 mT) to support MZMs has been reduced by several orders of magnitude compared to that ($>$0.5 T) in the previous schemes. Tuning the phase difference between the top and bottom superconductors can control the number and position of the MZMs. In addition, we account for the electrostatic potential in the superconductor/topological-insulator (SC/TI) interface through the self-consistent Schrödinger-Poisson calculation, which shows the experimental accessibility of our proposal. Our proposal only needs a small magnetic eld of less than 10 mT and is robust against the chemical potential fluctuation, which makes SC/TI/SC hybrid an ideal Majorana platform.

arXiv comment7 pages, 4 figures, and Supplemental material

References in corpus (72)

• Superconducting proximity effect and Majorana fermions at the surface of a topological insulator
• Topological Insulators with Inversion Symmetry
• Majorana Fermions and a Topological Phase Transition in Semiconductor-Superconductor Heterostructures
• Helical liquids and Majorana bound states in quantum wires
• Evidence of Majorana fermions in an Al - InAs nanowire topological superconductor
• A generic new platform for topological quantum computation using semiconductor heterostructures
• Observation of Majorana Fermions in a Nb-InSb Nanowire-Nb Hybrid Quantum Device
• Kwant: a software package for quantum transport
• Observation of the fractional ac Josephson effect: the signature of Majorana particles
• Exponential Protection of Zero Modes in Majorana Islands
• Reflection symmetric second-order topological insulators and superconductors
• Superconductor-Nanowire Devices from Tunneling to the Multichannel Regime: Zero-Bias Oscillations and Magnetoconductance Crossover
• Observation of Majorana fermions with spin selective Andreev reflection in the vortex of topological superconductor
• The Coexistence of Superconductivity and Topological Order in the Bi2Se3 Thin Films
• Hard gap in epitaxial semiconductor-superconductor nanowires
• Majorana Fermions in Semiconductor Nanowires
• Evidence of topological superconductivity in planar Josephson junctions
• $4\pi$-periodic Josephson supercurrent in HgTe-based topological Josephson junctions
• Realization of a minimal Kitaev chain in coupled quantum dots
• Majorana corner modes in a high-temperature platform
• Topological Superconductor Bi2Te3/NbSe2 heterostructures
• Distinguishing a Majorana zero mode using spin resolved measurements
• High-Temperature Majorana Corner States
• Ballistic superconductivity in semiconductor nanowires
• Weak-Pairing Higher Order Topological Superconductors
• Majorana Kramers pairs in higher-order 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
• Higher Order Topology and Nodal Topological Superconductivity in Fe(Se,Te) Heterostructures
• Penetration depth study of superconducting gap structure of 2\textit{H}-NbSe${}_2$
• Effects of gate-induced electric fields on semiconductor Majorana nanowires
• A new Majorana platform in an Fe-As bilayer superconductor
• Hybridization at superconductor-semiconductor interfaces
• Second-order Dirac superconductors and magnetic field induced Majorana hinge modes
• Lattice symmetry assisted second order topological superconductors and Majorana patterns
• Ordered and tunable Majorana-zero-mode lattice in naturally strained LiFeAs
• Topological and holonomic quantum computation based on second-order topological superconductors
• Majorana corner and hinge modes in second-order topological insulator-superconductor heterostructures
• Braiding of Majorana corner states in electric circuits and its non-Hermitian generalization
• Role of dissipation in realistic Majorana nanowires
• Braiding Majorana corner modes in a second-order topological superconductor
• First- and Second-Order Topological Superconductivity and Temperature-Driven Topological Phase Transitions in the Extended Hubbard Model with Spin-Orbit Coupling
• Boundary-obstructed topological high-T${}_c$ superconductivity in iron pnictides
• Phase tunable second-order topological superconductor
• All-electrically tunable networks of Majorana bound states
• Orbital contributions to the electron g-factor in semiconductor nanowires
• Zeeman-Induced Gapless Superconductivity with Partial Fermi Surface
• Helical Dirac-Majorana interferometer in a superconductor-topological insulator sandwich structure
• Intrinsic Time-reversal-invariant Topological Superconductivity in Thin Films of Iron-based Superconductors
• Proximity-effect-induced Superconducting Gap in Topological Surface States - A Point Contact Spectroscopy Study of NbSe2/Bi2Se3 Superconductor-Topological Insulator Heterostructures
• `Unhinging' the surfaces of higher-order topological insulators and superconductors
• Two-particle Berry phase mechanism for Dirac and Majorana Kramers pairs of corner modes
• High-$T_c$ Superconductor Fe(Se,Te) Monolayer: an Intrinsic, Scalable and Electrically-tunable Majorana Platform
• Double-frequency Aharonov-Bohm effect and non-Abelian braiding properties of Jackiw-Rebbi zero-mode
• Supercurrent-induced Majorana bound states in a planar geometry
• Creating Majorana modes from segmented Fermi surface
• Corner- and sublattice-sensitive Majorana zero modes on the kagome lattice
• Supercurrent-induced topological phase transitions
• Phase-manipulation-induced Majorana Mode and Braiding Realization in Iron-based Superconductor Fe(Te,Se)
• Proximity effect in PbTe-Pb hybrid nanowire Josephson junctions
• Top-down fabrication of bulk-insulating topological insulator nanowires for quantum devices
• Nodal higher-order topological superconductivity from a ${\mathcal{C}}_4$-symmetric Dirac semimetal
• Lattice distortion induced first and second order topological phase transition in rectangular high-T${}_{\mathrm{c}}$ superconducting monolayer
• Unconventional Floquet topological phases from quantum engineering of band inversion surfaces
• Inhomogeneous superconducting states in two weakly linked superconducting ultra thin films
• Majorana corner modes and flat-band Majorana edge modes in superconductor/topological-insulator/superconductor junctions
• Controlling Majorana modes by $p$-wave pairing in two-dimensional $p+id$ topological superconductors
• Tunable Majorana corner modes by orbital-dependent exchange interaction in a two-dimensional topological superconductor
• Electrostatic effects of the MnBi2Te4-superconductor hetero-structures in chiral Majorana search
• Superconducting quantum spin-Hall systems with giant orbital g-factors
• Engineering Majorana corner modes from two-dimensional hexagonal crystals

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