Thermoelectric transport in junctions of Majorana and Dirac channels

Abstract

We investigate the thermoelectric current and heat conductance in a chiral Josephson contact on a surface of a 3D topological insulator, covered with superconducting and magnetic insulator films. The contact consists of two junctions of Majorana and Dirac channels next to two superconductors. Geometric asymmetry results in a supercurrent without a phase bias. The interference of Dirac fermions causes oscillations of the electric and heat currents with an unconventional period $2{\Phi }_0=h/e$ as functions of the Aharonov-Bohm flux. Due to the gapless character of Majorana modes, there is no threshold for the thermoelectric effect and the current-flux relationship is non-sinusoidal. Depending on the magnetic flux, the direction of the electric current can be both from the hot to cold lead and vice versa.

10 pages, 5 figures; minor changes, version accepted for publication in Physical Review B

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• Nonlocal Thermoelectricity in a S-TI-S Junction in Contact with a N-Metal Probe: Evidence for Helical Edge States
• Strain-engineered Majorana Zero Energy Modes and ϕ0 Josephson State in Black Phosphorus
• Self-biased current, magnetic interference response, and superconducting vortices in tilted Weyl semimetals with disorder
• Gate voltage controlled thermoelectric figure of merit in three-dimensional topological insulator nanowires
• Nonlocal thermoelectricity in a topological Andreev interferometer
• Spin Splitting Nernst Effect in Altermagnet
• Nonlocal thermoelectric engines in hybrid topological Josephson junctions
• Signatures of Jackiw-Rebbi resonance in the thermal conductance of topological Josephson junctions with magnetic islands
• Thermal interferometry of anyons
• Thermoelectric transport through a finite-$U$ quantum dot side-coupled to Majorana bound state
• Nonlocal thermoelectricity in quantum wires as a signature of Bogoliubov-Fermi points
• Excess equilibrium noise in topological SNS junction between chiral Majorana liquids
• Decoupled heat and charge rectification as a many-body effect in quantum wires
• Majorana Thermoelectrics and Refrigeration
• Microwave response of a chiral Majorana interferometer
• Coulomb blockade of chiral Majorana and complex fermions far from equilibrium
• Anyonic analogue of optical Mach-Zehnder interferometer
• Spontaneous symmetry breaking-induced thermospin effect in superconducting tunnel junctions