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We have investigated charge transport in ultrasmall superconducting single and double Josephson junctions coupled to resonant modes of the electromagnetic environment. We observe pronounced current peaks in the transport characteristics of…

Superconductivity · Physics 2011-02-03 Yu. A. Pashkin , H. Im , J. Leppäkangas , T. F. Li , O. Astafiev , A. A. Abdumalikov , E. Thuneberg , J. S. Tsai

We explore the coherent thermal transport sustained by solitons through a long Josephson junction, as a thermal gradient across the system is established. We observe that a soliton causes the heat current through the system to increase.…

Mesoscale and Nanoscale Physics · Physics 2018-03-22 Claudio Guarcello , Paolo Solinas , Alessandro Braggio , Francesco Giazotto

The phase and thermal driven transport properties of the T-shaped uncorrelated double quantum dot Josephson junction are analyzed by using Keldysh non-equilibrium Green's function equation of motion technique. In this setup, we have shown…

Mesoscale and Nanoscale Physics · Physics 2023-03-10 Bhupendra Kumar , Sachin Verma , Ajay

We propose a heat valve based on the interplay between thermal transport and proximity-induced exchange splitting in Josephson tunnel junctions. We demonstrate that the junction heat conductance strongly depends on the relative alignment of…

Mesoscale and Nanoscale Physics · Physics 2013-04-09 F. Giazotto , F. S. Bergeret

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…

Mesoscale and Nanoscale Physics · Physics 2017-06-07 Dmitriy S. Shapiro , D. E. Feldman , Alexander D. Mirlin , Alexander Shnirman

Since its recent foundation, phase-coherent caloritronics has sparkled continuous interest giving rise to numerous concrete applications. This research field deals with the coherent manipulation of heat currents in mesoscopic…

Mesoscale and Nanoscale Physics · Physics 2018-08-20 Claudio Guarcello , Paolo Solinas , Alessandro Braggio , Francesco Giazotto

The combined action of a DC bias and a microwave drive on the transport characteristic of a superconductor-quantum dot-superconductor junction is investigated. To cope with time dependent non-equilibrium effects and interactions in the…

Mesoscale and Nanoscale Physics · Physics 2023-04-05 Julian Siegl , Jordi Picó-Cortés , Milena Grifoni

We report on a theoretical study of transport properties of two coupled Josephson junctions and compare two scenarios for controlling the current-voltage characteristics when the system is driven by an external biased DC current and…

Superconductivity · Physics 2012-02-20 J. Spiechowicz , L. Machura , M. Kostur , J. Luczka

The first evidence of the dc Josephson effect dates back to 1963 when J. S. Rowell measured the diffraction pattern of the critical current flowing through a single superconducting tunnel junction subjected to an in-plane magnetic field.…

Mesoscale and Nanoscale Physics · Physics 2014-04-04 M. J. Martínez-Pérez , F. Giazotto

We study heat transport and thermoelectric effects in two-dimensional superconductors in a magnetic field. These are modeled as granular Josephson-junction arrays, forming either regular or random lattices. We employ two different models…

Superconductivity · Physics 2011-05-05 Andreas Andersson , Jack Lidmar

This article reviews recent advances in low-temperature electronic thermal transport properties of thermally biased superconductor heterostructures focusing on the two-terminal transport. Since the last decade, ferromagnetism has been…

Superconductivity · Physics 2025-04-01 Paramita Dutta

Macroscopic quantum phase coherence has one of its pivotal expressions in the Josephson effect [1], which manifests itself both in charge [2] and energy transport [3-5]. The ability to master the amount of heat transferred through two…

Mesoscale and Nanoscale Physics · Physics 2016-03-10 Antonio Fornieri , Christophe Blanc , Riccardo Bosisio , Sophie D'Ambrosio , Francesco Giazotto

We study heat and charge transport through a normal diffusive wire coupled with a superconducting wire over the region smaller than the coherence length. Due to partial Andreev reflection of quasiparticles from the interface, the subgap…

Superconductivity · Physics 2014-12-03 E. V. Bezuglyi , V. Vinokur

Two superconductors coupled by a weak link support an equilibrium Josephson electrical current which depends on the phase difference $\varphi$ between the superconducting condensates [1]. Yet, when a temperature gradient is imposed across…

Mesoscale and Nanoscale Physics · Physics 2017-05-25 Antonio Fornieri , Giuliano Timossi , Pauli Virtanen , Paolo Solinas , Francesco Giazotto

We present an experimental and theoretical investigation of coherent current transport in wide ballistic superconductor-two dimensional electron gas-superconductor junctions. It is found experimentally that upon increasing the junction…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 P. Samuelsson , A. Ingerman , G. Johansson , E. V. Bezuglyi , V. S. Shumeiko , G. Wendin , R. Kursten , A. Richter , T. Matsuyama , U. Merkt

We investigate thermal and non-local electrical transport in four-terminal Josephson junctions formed by a normal region coupled to two transverse chiral superconducting leads, supporting phases characterized by Chern numbers ${\cal…

We present an exhaustive study of the coherent heat transport through superconductor-ferromagnet(S-F) Josephson junctions including a spin-filter (I$_{sf}$) tunneling barrier. By using the quasiclassical Keldysh Green's function technique…

Superconductivity · Physics 2013-07-23 F. S. Bergeret , F. Giazotto

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 to account for strong Coulomb…

Mesoscale and Nanoscale Physics · Physics 2021-12-01 Alexander G. Bauer , Björn Sothmann

We study heat transport in normal/superconducting graphene junctions. We find that while the thermal conductance displays the usual exponential dependence on temperature, reflecting the s-wave symmetry of the superconductor, it exhibits an…

Superconductivity · Physics 2009-11-13 Takehito Yokoyama , Jacob Linder , Asle Sudbo

We investigate the AC Josephson current through a quantum dot with strong Coulomb interaction attached to two superconducting and one normal lead. To this end, we perform a perturbation expansion in the tunneling couplings within a…

Mesoscale and Nanoscale Physics · Physics 2015-06-11 Bastian Hiltscher , Michele Governale , Jürgen König