Phase-sensitive thermoelectricity and long-range Josephson effect supported by thermal gradient
Mesoscale and Nanoscale Physics
2020-05-13 v1
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 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 . We also predict a non-trivial current-phase relation and a transition to a -junction state controlled by both the temperature gradient and the system topology. All these features are simultaneously observable in the same experiment.
Cite
@article{arxiv.1912.03834,
title = {Phase-sensitive thermoelectricity and long-range Josephson effect supported by thermal gradient},
author = {Mikhail S. Kalenkov and Pavel E. Dolgirev and Andrei D. Zaikin},
journal= {arXiv preprint arXiv:1912.03834},
year = {2020}
}