Temperature-Biased Double-Loop Josephson Flux Transducer

@article{Guarcello2022TemperatureBiasedDJ,
  title={Temperature-Biased Double-Loop Josephson Flux Transducer},
  author={Claudio Guarcello and Roberta Citro and Francesco Giazotto and Alessandro Braggio},
  journal={Physical Review Applied},
  year={2022}
}
We theoretically study the behavior of the critical current of a thermally-biased tunnel Josephson junction with a particular design, in which the electrodes of the junction are enclosed in two different superconducting loops pierced by independent magnetic fluxes. In this setup, the superconducting gaps can be modified independently through the magnetic fluxes threading the loops. We investigate the response of the device as a function of the magnetic fluxes, by changing the asymmetry parameter, i… 

Figures from this paper

Bipolar Thermoelectricity in Bilayer-Graphene/Superconductor Tunnel Junctions

We investigate the thermoelectric properties of a hybrid nanodevice composed by a 2D carbon-based material and a superconductor. This system presents nonlinear bipolar thermoelectricity as induced by

References

SHOWING 1-10 OF 70 REFERENCES

Nonlinear Critical-Current Thermal Response of an Asymmetric Josephson Tunnel Junction

We theoretically investigate the critical current of a thermally-biased SIS Josephson junction formed by electrodes made by different BCS superconductors. The response of the device is analyzed as a

Phase-tunable thermoelectricity in a Josephson junction

Superconducting tunnel junctions constitute the units of superconducting quantum circuits and are massively used both for quantum sensing and quantum computation. In previous works, we predicted the

Gap resonance in the classical dynamics of the current-biased Josephson tunnel junctions

This work reports a novel time-domain expression for the current-response kernels of a Josephson tunnel junction between BCS superconductors with in general different energy gaps, and its use to

The Josephson heat interferometer

TLDR
In addition to confirming the existence of a phase-dependent thermal current unique to Josephson junctions, the results point the way towards the phase-coherent manipulation of heat in solid-state nanocircuits.

Superconducting nonlinear thermoelectric heat engine

In a previous work, we predicted that a thermally biased tunnel junction between two different superconductors can display a thermoelectric effect of nonlinear nature in the temperature gradient,

Negative differential thermal conductance and heat amplification in superconducting hybrid devices

We investigate the thermal transport properties of a temperature-biased Josephson tunnel junction composed of two different superconductors. We show that this simple system can provide a large

Phase-dependent transport in thermally driven superconducting single-electron transistors

We investigate thermally-driven transport of heat and charge in a superconducting single-electron transistor by means of a real-time diagrammatic transport theory. Our theoretical approach allows us

Heat transport through a Josephson junction

We discuss heat transport through a Josephson tunnel junction under various bias conditions. We first derive the formula for the cooling power of the junction valid for arbitrary time dependence of

Nonlinear Thermoelectricity with Electron-Hole Symmetric Systems.

TLDR
This work demonstrates that a thermally biased junction can display an absolute negative conductance, and hence thermoelectric power, at a small but finite voltage bias, provided that the density of states of one of the electrodes is gapped and the other is monotonically decreasing.

Bipolar thermoelectric Josephson engine.

Thermoelectric effects in metals are typically small due to the nearly perfect particle-hole symmetry around their Fermi surface. Furthermore, thermo-phase effects and linear thermoelectricity in
...