Phase-sensitive thermoelectricity and long-range Josephson effect supported by thermal gradient

Abstract

We demonstrate that thermoelectric signal as well as dc Josephson current may be severely enhanced in multi-terminal superconducting hybrid nanostructures exposed to a temperature gradient. At temperatures $T$ strongly exceeding the Thouless energy of our device both the supercurrent and the thermo-induced voltage are dominated by the contribution from non-equilibrium low energy quasiparticles and are predicted to decay slowly (algebraically rather than exponentially) with increasing $T$. We also predict a non-trivial current-phase relation and a transition to a $\pi$-junction state controlled by both the temperature gradient and the system topology. All these features are simultaneously observable in the same experiment.

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Cited by in corpus (9)

• Phase-tunable thermoelectricity in a Josephson junction
• Nonlocal thermoelectricity in a topological Andreev interferometer
• Nonlocal thermoelectric engines in hybrid topological Josephson junctions
• Fractional Shapiro steps without fractional Josephson effect
• Phase-coherent thermoelectricity and non-equilibrium Josephson current in Andreev interferometers
• Phase-coherent thermoelectricity in superconducting hybrids (Brief Review)
• Phase-dependent charge and heat current in thermally biased short Josephson junctions formed at helical edge states
• Long-range Josephson effect controlled by temperature gradient and circuit topology
• Spontaneous symmetry breaking-induced thermospin effect in superconducting tunnel junctions