Magnetotransport and induced superconductivity in Bi based three-dimensional topological insulators

Abstract

The surface of a 3D topological insulator is conducting and the topologically nontrivial nature of the surface states is observed in experiments. It is the aim of this paper to review and analyze experimental observations with respect to the magnetotransport in Bi-based 3D topological insulators, as well as the superconducting transport properties of hybrid structures consisting of superconductors and these topological insulators. The helical spin-momentum coupling of the surface state electrons becomes visible in quantum corrections to the conductivity and magnetoresistance oscillations. An analysis will be provided of the reported magnetoresistance, also in the presence of bulk conductivity shunts. Special attention is given to the large and linear magnetoresistance. Superconductivity can be induced in topological superconductors by means of the proximity effect. The induced supercurrents, Josephson effects and current-phase relations will be reviewed. These materials hold great potential in the field of spintronics and the route towards Majorana devices.

Accepted review paper for focus issue on Topological Insulators - From materials design to reality (physica status solidi - RRL)

References in corpus (27)

• 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
• Non-Abelian Topological Order in S-Wave Superfluids of Ultracold Fermionic Atoms
• Gate-Voltage Control of Chemical Potential and Weak Anti-localization in Bismuth Selenide
• Electrically detected interferometry of Majorana fermions in a topological insulator
• Topological Phases of Noncentrosymmetric Superconductors: Edge States, Majorana Fermions, and the Non-Abelian Statistics
• Topological origin of subgap conductance in insulating bilayer graphene
• Two-dimensional Dirac fermions in a topological insulator: transport in the quantum limit
• Non-Abelian quantum order in spin-orbit-coupled semiconductors: The search for topological Majorana particles in solid state systems
• Bulk Fermi surface coexistence with Dirac surface state in Bi${}_2$Se${}_3$: a comparison of photoemission and Shubnikov-de Haas measurements
• Impurity effect on weak anti-localization in the topological insulator Bi2Te3
• Bulk Band Gap and Surface State Conduction Observed in Voltage-Tuned Crystals of the Topological Insulator Bi${}_2$Se${}_3$
• Observation of Dirac Holes and Electrons in a Topological Insulator
• Multichannel Generalization of Kitaev's Majorana End States and a Practical Route to Realize Them in Thin Films
• Observing Majorana Bound States in p-wave Superconductors Using Noise Measurements in Tunneling Experiments
• Surface State Transport and Ambipolar Electric Field Effect in Bi2Se3 Nanodevices
• Search for Majorana fermions in multiband semiconducting nanowires
• Tunable Surface Conductivity in Bi2Se3 Revealed in Diffusive Electron Transport
• Direct Evidence for the Dirac-Cone Topological Surface States in Ternary Chalcogenide TlBiSe2
• Proximity effect at the superconductor - topological insulator interface
• Topological spin-current in non-centrosymmetric superconductors
• Proximity-induced high-temperature superconductivity in topological insulators Bi2Se3 and Bi2Te3
• Majorana End-States in Multi-band Microstructures with Rashba Spin-Orbit Coupling
• Topologically non-trivial superconductivity in spin-orbit coupled systems: Bulk phases and quantum phase transitions
• Majorana fermions of a two-dimensional Px+iPy superconductor
• Magnetic interference pattern in planar SNS Josephson junctions